试剂,哈纳 余氯试剂,HI93701-01
HI93703-11N高精度浊度仪和高精度浊度仪价格
HI93703-11N 高精度浊度仪和高精度浊度仪价格HI93703-11N 高精度浊度仪 标题：HI93703-11N 高精度浊度仪精度浊度分析测定仪，光学系统具有自动调整功能，无需频繁校准。
您可以根据测量样品特性和精度要求，选择常规测量，连续测量或平均测量模式。
浊度测量范围为0.00 to 1000FNU ，仪器标配校准组，您可以随时进行各个测量参数的快捷校准。
仪器具有GLP 良好实验室管理功能，您可以查阅末次校准的各种相关信息：校准点，校准时间等。
用户友好界面设计，显示提示信息，为您提供逐步操作指南。
仪器具有优良存储功能，200个内置数据存储空间，并可以对存储数据随时进行调阅。
同时，如果您选购数据分析软件和数据线，还可以将存储数据通过RS232或USB 数据接口传输到PC ，进行进一步数据分析。
主要性能特点 ►钨灯光源，符合EPA 浊度测量标准 ►在低浊度测量领域具有卓越精准性 ►Fast Trac...厂家：上海政泓 市场价格： 优惠价格：百度搜索联系HI98308笔式电导仪/纯水检测笔 标题：HI98308笔式电导仪/纯水检测笔HI98308(PWT)用于检测去离子水，蒸馏水或矿泉水。
HI98308(PWT)适用于印制电路板的清洗，洗衣房，蒸汽清洗和蒸馏水，矿泉水或纯水测试领域。
外壳坚固耐用，符合人体工程学设计，手持操作。
纯水相关参数对照表 电导率 电阻率 mg/L NaCl 100 µS/cm 10 KΩ 48 10 µS/cm 100 KΩ 4.6 1 µS/cm 1 MΩ 0.4 0.1 µS/cm 10 MΩ 0.02 HI98308(PWT) 测量范围 0.0 to 99.9 μS/cm 解析度 0. 1 μS/cm 测量精度 ±2% F.S. 校准模式 手动单点校准温度补偿 自动温度补偿, 0 to 50°C (32 to 122°F) -------- 电源模式 4 x 1.5V 钮扣电池 适于环境 0 to 50°C (32 to 122°F); RH max 95% 尺寸重量... 厂家：上海政泓 市场价格： 优惠价格：百度搜索联系HI93735D 总硬度测定仪 标题：HI93735D 总硬度测定仪总硬度，即镁硬度和钙硬度之和，是降雨流经过程中通过不同结构地层的过滤，溶解了一些矿物质而形成了水的硬度。
氯乙酸钠-安全技术说明书MSDS
第一部分化学品及企业标识化学品中文名：氯乙酸钠化学品英文名：sodium chloroacetate；sodium salt of chloroacetic acidCAS No.：3926-62-3EC No.：223-498-3分子式：C2H2ClNaO2第二部分危险性概述紧急情况概述固体。
吞食后有毒。
对皮肤有刺激性。
对水生物有剧毒，使用适当的容器，以预防污染环境。
GHS危险性类别根据GB30000-2013化学品分类和标签规范系列标准（参阅第十六部分），该产品分类如下：急毒性-口服，类别3；皮肤腐蚀/刺激，类别2；危害水生环境-急性毒性，类别1。
标签要素象形图警示词：危险危险信息：吞咽会中毒，造成皮肤刺激，对水生生物毒性极大。
预防措施：作业后彻底清洗。
使用本产品时不要进食、饮水或吸烟。
避免释放到环境中。
戴防护手套/穿防护服/戴防护眼罩/戴防护面具。
事故响应：漱口。
收集溢出物。
如误吞咽：立即呼叫中毒急救中心/医生。
如发生皮肤刺激：求医/就诊。
脱去被污染的衣服，清洗后方可重新使用。
安全储存：存放处须加锁。
废弃处置：按照地方/区域/国家/国际规章处置内装物/容器。
物理化学危险：无资料健康危害：吸入该物质可能会引起对健康有害的影响或呼吸道不适。
意外食入本品可能引起毒害作用。
意外食入本品可能对个体健康有害。
皮肤直接接触可造成皮肤刺激。
通过割伤、擦伤或病变处进入血液，可能产生全身损伤的有害作用。
眼睛直接接触本品可导致暂时不适。
环境危害：本品对水生生物毒性极大。
请参阅SDS第十二部分。
第三部分成分/组成信息√物质混合物第四部分急救措施一般性建议：急救措施通常是需要的，请将本SDS出示给到达现场的医生。
皮肤接触：立即脱去污染的衣物。
用大量肥皂水和清水冲洗皮肤。
如有不适，就医。
眼睛接触：用大量水彻底冲洗至少15分钟。
如有不适，就医。
吸入：立即将患者移到新鲜空气处，保持呼吸畅通。
如果呼吸困难，给于吸氧。
如患者食入或吸入本物质，不得进行口对口人工呼吸。
海纳 HI 931100 海纳 HI 931101 水抗电阻液氧度和钠含量测量仪指南说明书
Instruction ManualHI 931100 • HI 931101Waterproof Instruments for Salinity and Sodium Content Measurementsw w w.h a n n a i n s t.c o m12Remove the instrument from the packing material and examine it carefully to make sure that no damage has occurred during shipping. If there is any noticeable damage, immediately notify your dealer.Each meter is supplied with batteries, rugged carrying case and instructionsNote: Save all packing materials until you are sure that the instrument functions correctly. Alldefective items must be returned in the originalpacking materials together with the suppliedaccessories.HANNA instruments® has designed these two rugged waterproof salinity and sodium meters for regular use in the lab, as well as in harsh processing environments.HI 931100 is an ion-selective meter that uses a sodium electrode to read the salt (NaCl) content of a solution. HI 931100 autoranges (4 scales available) from sample to sample allowing an extremely wide range of measurements without recalibration.HI 931101 employs the FC 300B combination sodium electrode to provide sodium readings from 15.0 mg/L to 60 g/L.The calibration is automatic at 2 points, the first is at 2.3 g/L while the second can be either at 0.23 g/L (low range) or at 23.0 g/L (high range).A separate temperature probe, HI 7662, provides tem-perature readings from 0 to 80ºC.Dear Customer,Thank you for choosing a HANNA instruments®product.Please read this instruction manual carefully beforeusing the instrument.If you need additional technical information, do nothesitate to e-mail us at******************directives.Preliminary Examination (3)General Description (3)Functional Description HI931100 (4)Specifications HI931100 (5)Functional Description HI931101 (6)Specifications HI 931101 (7)Operational Guide (8)Na Calibration (HI 931101) (12)NaCl Calibration (HI 931100) (15)Special Applications & Additional Info (18)Temperature Calibration (21)FC 300B Conditioning & Maintenance (23)Battery Replacement (26)Accessories (27)Warranty (29)CE declaration of conformity (30)3541.Battery compartment2.BNC connector for electrode3.Temperature probe socket4.LCD (Liquid Crystal Display)5.ON/OFF key, to turn the meter on or off6.CAL key, to enter/exit calibration mode7.CFM key, to confirm calibration8.BUF key, to select calibration buffer valueRange0.150 to 1.500 / 1.50 to 15.00 / 15.0 to 150.0150 to 300 g/L NaCl0.0 to 80.0°CResolution0.001 / 0.01 / 0.1 / 1 g/L NaCl0.1°CAccuracy ±5% of reading (NaCl)(@20°C)±0.5°CTypical EMC Deviation±2% FS (NaCl) / ±0.5°C CalibrationAutomatic, 1 or 2 point at 3.00 g/L (HI 7083) and0.30 g/L (HI 7085) or 30.0 g/L (HI 7081)Temperature Compensation25°C (77°F)Electrode FC300B sodium electrodewith BNC and 1 m (3.3) cable (not included)Temperature ProbeHI 7662 (not included)Input Impedance1012 OhmBattery Type / Life4 x 1.5V AA / approx. 200 hours of use Environment 0 to 50°C (32 to 122°F);RH max 100%Dimensions 196 x 80 x 60 mm (7.7 x 3.1 x 2.4")Weight500 g (1.1 lb.)76Range0.00 to 3.00 pNa 15.0 to 150.0 mg/L Na0.150 to 1.500 / 1.50 to 15.00 / 15.0 to 60.0 g/L Na0.0 to 80.0°CResolution0.01 pNa / 0.1 mg/L Na 0.001 / 0.01 / 0.1 / 1 g/L Na0.1°C Accuracy ±0.05 pNa(@20°C)±5% of reading (Na)±0.5°CTypical EMC Deviation±2% FS (pNa and Na) / ±0.5°C CalibrationAutomatic, 1 or 2 point at 2.3 g/L (HI 7080) and0.23 g/L (HI 7087) or 23.0 g/L (HI 7086)Temperature Compensation25°C (77°F)Electrode FC300B sodium electrodewith BNC an 1 m (3.3) cable (not included)Temperature ProbeHI 7662 (not included)Input Impedance1012 OhmBattery Type / Life4 x 1.5V AA / approx. 200 hours of useEnvironment 0 to 50°C (32 to 122°F);RH max 100%Dimensions196 x 80 x 60 mm (7.7 x 3.1 x 2.4")Weight500 g (1.1 lb.)1.Battery compartment2.BNC connector for electrode3.Temperature probe socket4.LCD (Liquid Crystal Display)5.ON/OFF key, to turn the meter on or off6.CAL key, to enter/exit calibration mode7.MODE key, to select Na or pNa range8.CFM key, to confirm calibration9.BUF key, to select calibration buffer value98For accurate readings, calibration should be per-formed (or verified) every day if measuring the same type of samples (e.g. cheese), or every time the sample type is changed (e.g. cheese, meat, sea water, etc.).The recommended working temperature is around 20-25°C (68-77°F). For greater accuracy, perform the calibration with standard solutions at a tempera-ture as close as possible to the temperature of the sample.TAKING SODIUM MEASUREMENTS Remove the protective cap from the FC300B sodium electrode and, if possible, rinse it with some of the sample to be measured.Shift downwards the rubber sleeve (see picture) to have a properly work-ing junction.Immerse the tip of the FC300B elec-trode (at least 2.5cm/1") into the sample to be tested while making sure that the electrode junction is completely immersed, and without touching the bottom of the beaker.Wait for approximately 10 to 15 minutes to allow for the electrode to adjust and stabilize, i.e. until no drifting is observed for at least a couple of minutes.During measurement, if possible,the sample should be gentlystirred (100 rpm).INITIAL PREPARATION Each meter is supplied com-plete with four 1.5V AA batter-ies.Remove the back cover, unwrap the batteries and install them while paying attention to their polarity.PROBE CONNECTION Connect the FC300B sodium electrode to the BNC socket on the top of the instrument.Connect the HI 7662 tempera-ture probe to the RCA socket.The temperature probe can be used independently to take tem-perature measurements.If the probe is not plugged in,the secondary display shows "25°C" with the "°C" indicator blinking.To switch the instrument on,press and hold the ON/OFF key for a fraction of a second.These meters have a built-in protection against elec-tromagnetic interferences and the holding of the keys is to ensure that the commands are not mis-taken for erroneous signals.In order to take accurate measurements, make sure the instrument is calibrated before use(see "Calibration" sections for details).FC 300B SODIUMHI 7662N TEMPERA TURE1110If the electrode is used rarely (once a month or less), store it dry. Before using it again, let it condition overnight in HI 7081 (30.0 g/L NaCl) or HI 7086 (23 g/L Na 1M)To avoid very long response time, do not store or rinse the electrode with deionized water. Donot rub the electrode.TAKING pNa MEASUREMENTS (HI 931101 only)Press the MODE key during measurement to con-vert the value displayed by the HI 931101 to pNa.Note thatpNa = -log a Nawhere a Na is the activity of ion Na.Press the MODE key again to return to g/L mea-surements.Note : The temperature is alwaysdisplayed on the secondary LCD.AFTER USETurn the meter off by pressing the ON/OFF key again.For faster and accurate measurements, the electrode should be stored in a solution with a Na/NaCl concen-tration similar to the sample to be measured.After use, shift back upwards therubber sleeve (see picture).1312SINGLE POINT CALIBRATION (OFFSET) •Dip the FC300B sodium elec-trode into the HI 7080 (2.3g/L Na) solution.Note :Immerse the electrodeapproximately 2.5 cm (1") into the solution.•Press the CAL key. The "CAL" and "BUF" indi-cators will be displayed with the "BUF" and the"" symbols blinking. •"electrode is stabilizing. The required standard solution be-ing value is displayed on the primary LCD.•As soon as the electrode sta-bilized, the "CON" symbol ap-pears on the display.Press the CFM key to save the calibration point. For best results, wait for a couple of minutes before confirming. •HI 931101 will display "0.230gm".Calibration can be performed at 1 (offset only) or 2points.For best accuracy, a 2 point procedure is recom-mended.PREPARATION•Pour small quantities of HI7080 (2.3 g/L Na) solution and HI 7087 (0.23 g/L Na) or HI 7086 (23 g/L Na) into two beakers.For accurate readings, use for the second point the HI 7087 solution if you are going to measure samples with low sodium content (below 2.3 g/L), or theHI 7086 standard if you are going to measure samples with high sodium content (over 2.3 g/L).•For accurate calibration use two beakers for each solu-tion, the first one for rinsing the electrode, the second one for calibration.If possible, use plastic beakers to minimize any EMC interferences.•Turn the meter on by press-ing the ON/OFF key.•are going to use first.•Shift downwards the rubber sleeve for a properly working junction (see picture).1514Wait for a couple of minutes and then press the CFM key.•normal measurement mode.•For exiting the calibration mode and save the single point cali-bration, press the CAL key. For better accuracy however, it is recommended to perform a 2point calibration.TWO POINT CALIBRATION •After the first point is confirmed,immerse the FC300B electrode into the second standard solu-tion: HI 7087 at 0.23 g/L Na or HI 7086 at 23 g/L Na.Note :The electrode should beimmersed approximately 2.5 cm (1") into the solu-tion.•Select the calibration value by pressing the BUF key. Make sure that the selected value cor-responds to the solution being used for the second calibration point.•If the reading is not close to the selected calibration standard, the "BUF" indicator will continue to blink.Otherwise, if the reading is close to the selected calibration value,the meter will recognize the stan-dard solution and only the ""symbol will blink, to indicate that the reading is stabilizing.•Once stabilized "CON" symbolwill appear on the display.Calibration can be performed at 1 (offset only) or 2points.For best accuracy, a two point procedure is recom-mended.PREPARATION •Pour small quantities of HI 7083 (3.00 g/L NaCl) solu-tion and HI 7085 (0.30 g/L) or HI 7081 (30 g/L) into two clean beakers.For more accurate readings use for the second poit the HI 7085 solution if you are going to measure samples with low sodium chloride con-tent (< 3 g/L), or the HI 7081 solution for samples with high sodium chloride content (> 3 g/L). •For an accurate calibration, use two beakers for each solution, the first one for rinsing the electrode, the sec-ond one for calibration.If possible use plastic beakers to minimize any EMC interferences.•Turn the meter on by press-ing the ON/OFF key.•Remove the protective cap and rinse the elec-trode with some of the calibration solution you are going to use first.•Shift downwards the rubber sleeve for a properly working junction (see picture).1716•To quit the calibration and save the first point, press the CAL key.TWO POINT CALIBRATION•After the first point is confirmed,immerse the FC300B electrode into the second solution:HI 7085 at 0.3 g/L NaCl or HI 7081 at 30 g/L NaCl.Note :The electrode should beimmersed approximately 2.5 cm (1") into the so-lution. •Select the second point value by pressing the BUF key. Make sure that the selected value cor-responds to the one being used for the second calibration point. •If the reading is not close to the selected value, the "BUF"symbol will blink.Otherwise, if the reading is close to the selected value, the meter will recognize the stan-dard solution. Only the ""symbol will blink, to indicate that the reading is stabilizing.•Once stabilized "CON" symbol will appear on the display.For best results, wait for a couple of minutes and press the CFM key.•The two point calibration is now completed and the meter re-turns to the normal mode.SINGLE POINT CALIBRATION (OFFSET) •Dip the FC300B sodium elec-trode into the HI 7083 (3.00g/L NaCl) solution.Note :Immerse the electrodeapprox. 2.5 cm (1") into the solution.•Press the CAL key. The "CAL" and "BUF" indi-cators will be displayed with the "BUF" and the "" symbols blinking.•"trode is stabilizing.The value of the standard solu-tion being used will be displayed on the primary LCD.•As soon as the electrode is sta-bilized, "CON" symbol lights up.For best results, wait for a couple of minutes before pressing the CFM key.•HI 931100 will then display "30.0gm".1918UTION6.Wait for the reading to stabilize, i.e. no drift should be observed for at least a couple of minutes. Note the measured value.7.Since the dilution rate is 1/10, the reading in the g/L range has to be divided by 100 to get the actual reading of NaCl (per gram of cheese or meat), or the value can be considered directlyexpressed in % of NaCl.Note : A response time of 10 to 15 minutes for thefirst measurement of cheese or meat, is the correct expected time for the electrode tostabilize. Next measurements of cheese or meat samples will require shorter response time (less than 2 minutes). Do not rinse the sodium electrode between subsequent mea-surements since contamination is negligible.IONIC STRENGTH ADJUSTER (ISA)When the NaCl concentration of the sample is lower than 5 g/L, it is recommend to use the HI 7090 ISA solution. In such case, calibration should be per-formed with standard solution containing 2% of ISA.ISA (Ionic Strength Adjuster) = 50% of NH 4Cl 4M +50% of NH 4OH 4M (use 2 mL of ISA every 100 mL of sample).HOW TO MEASURE SODIUM CHLORIDE IN CHEESE AND MEAT (HI 931100)1.Grind a sample of cheese or meat.2.Pour a quantity (X g) in a glass beaker. Add (X)x 10 mL of deionized water (note : ignoring water content of cheese and meat).3.Cover the beaker to prevent any spilling during stirring, place the beaker on a hot plate stirrer and agitate the sample at 40-50°C (104-122°F)for 15-20 minutes.4.Let the sample cool to the ambient temperature,then filter it.5.Dip the FC 300B sodium electrode into the fil-tered sample. The tip of the electrode should be immersed for approximately 2.5cm/1" (i.e. the electrode junction must be completely immersed)without touching the bottom of the beaker. Dur-ing measurement, the sample should be gently stirred (100 rpm).2120INITIAL PREPARATIONPrepare a 0°C/32°F bath with ice and water and another one at 50°C/122°F using hot water at a known temperature. Place insulation material around the containers to minimize temperature e a Checktemp or another accurate thermometer with a resolution of 0.1° as reference.Note: A blinking "°C" indicatesthat the temperature probe is not connected.PROCEDURE•Connect the HI 7662 temperature probe to the RCA socket on the top of the instrument.•Turn the instrument off.•To enter the temperature calibration mode, press the CAL and ON/OFF keys simultaneously. •Immerse the temperature probe into the 0°C/32°F bath together with the reference thermom-eter.•When the reading stabilizes,press the CAL key. The "0.0°C", "CAL" and "BUF"symbols will be displayed. The "" symbol will blink for afew seconds.TEMPERATUREThe best working temperature is around 20-25°C (68-77°F).For greatest accuracy, it is recommended to cali-brate the meter with standard solution at a tempera-ture as close as possible to the temperature of the sample (±1°C/±2°F).Na CONCENTRATION WITH HI 931100It is always possible to determine the Na concentra-tion by using the formula:X Na = X NaCl • (23 / 58.4)whereX Na = concentration of NaandX NaCl = concentration of NaCl22PREPARATIONRemove the protective cap.with water.properly under these conditions. These bubbles can be removed by "shaking down" the electrode as you would do with a glass thermometer. If the bulb and/or junctionare dry, soak the elec-trode in HI 7081 (NaCl30.0 g/L) solution over-night before use withHI931100. Soak it inHI7086 (Na 23 g/L) solu-tion overnight before usewith HI931101.If the electrolyte solutionis more than 1cm (½")below the filling hole, addHI8093 1M KCl+AgCl electrolyte solution.Shift downwards the rub-ber sleeve during mea-surements and calibra-tion.SODIUM MEASUREMENTRinse the sodium electrode tip with some of the sample to be tested, then immerse the tip (approx. 2.5 cm /1") in the sample and stir gen-tly.•When the input value be-comes stable, the ""symbol disappears and"CON" will start blinking.value.•Immerse the temperature probe into the 50°C (122°F)bath.•Press the CAL key to dis-play the "0.0°C" and thenpress the BUF key to se-lect "50.0°C". "CAL" and"BUF" symbols. ""symbol will blink for a fewseconds.•When the input value be-comes stable, the ""symbol disappears and"CON" will start blinking. •Press the CFM key to confirm the calibrationvalue.•The calibration is now complete.•Turn the meter off and on again to return to thenormal mode.232524CLEANING PROCEDURE General Soak in Hanna HI 7061 general clean-ing solution for approximately 1 hour.Removal of films, dirt or deposits on the membrane/junction:- Protein Soak in Hanna HI 7073 protein clean-ing solution for 15 minutes.- Inorganic Soak in Hanna HI 7074 inorganic clean-ing solution for 15 minutes.- Oil/grease Rinse with Hanna HI 7077 or Oil & Fatcleaning solution.IMPORTANT: After performing any of the clean-ing procedures rinse the electrode thoroughly with a solution containing 2% ISA, refill (if necessary) the reference chamber with fresh electrolyte (HI 8093) and soak the electrode in a solution very close to the next sample to be measured for at least 1 hour before taking measurements.TROUBLESHOOTINGEvaluate the performance of your electrode based on the following.•Noise (readings fluctuate up and down) could be due to:-Clogged/Dirty Junction: refer to the Cleaning Procedure above.-Loss of shielding due to low electrolyte level:refill with HI 8093 solution•Dry Membrane/Junction: soak it overnight in HI7081 (30.0 g/L NaCl) or HI7086 (23 g/L Na)solution before use.•Drifting: soak the electrode tip in warm HI 8093solution for one hour. Refill with fresh HI 8093electrolyte solution.•Low Slope: refer to the Cleaning Procedure. •No Slope: check the electrode for cracks in glass stem or bulb and, if necessary, replace the electrode.•Slow Response/Excessive Drift: soak the tip in HI 7061 solution for 30 minutes, rinse thor-oughly in a solution with 2% of ISA, and then follow the Cleaning Procedure.The sensitive bulb should not touch the bottom of the beaker.The Hanna HI 76405 electrode holder can be used for this purpose.During measurement, the sample should be gently stirred (approx. 100 rpm). The Hanna HI 190M stirrer can be used for this purpose.STORAGEWhen used frequently, the electrode should be stored in a solution with a Na or NaCl concentration similar to the sample to be measured. For longer periods of storage, the electrode should be sored with a few drops of appropriate solution in the protective cap.For frequent use in different samples (1 or 2 times per week), store the electrode in HI7081 (30.0 g/L NaCl) solution if used for NaCl measurements with HI 931100.Store the electrode in HI 7080 (2.3g/L Na) solution if used for Na measurements with HI931101.For occasional use (once a month or less) store the electrode dry and let it conditioning overnight in HI7081 (30.0 g/L NaCl) or HI 7086 (23 g/L Na)solution before use.Note: NEVER STORE OR RINSE THE ELECTRODEIN DISTILLED OR DEIONIZED WATER.PERIODIC MAINTENANCEInspect electrode and cable. The cable used for connection to the meter must be intact and there must be no points of broken insulation on the cable or cracks on the electrode stem or bulb. Connec-tors must be perfectly clean and dry.If any scratches or cracks are present, replace the electrode.Rinse off any salt deposits with water.Refill the electrode with fresh electrolyte (HI 8093)and let it stand upright for 1 hour.Follow the Storage Procedure above.2726Na SOLUTIONS FOR HI 931101HI 7080M 2.3 g/L Na solution, 230 mL bottleHI 8080M 2.3 g/L Na solution, 230 mL FDA bottle HI 7080L 2.3 g/L Na solution, 500 mL bottleHI 8080L 2.3 g/L Na solution, 500 mL FDA bottle HI 7086M 23 g/L Na solution, 230 mL bottleHI 8086M 23 g/L Na solution, 230 mL FDA bottle HI 7086L 23 g/L Na solution, 500 mL bottleHI 8086L 23 g/L Na solution, 500 mL FDA bottle HI 7087M 0.230 g/L Na solution, 230 mL bottle HI 8087M 0.230 g/L Na solution, 230 mL FDA bottle HI 7087L 0.230 g/L Na solution, 500 mL bottle HI 8087L 0.230 g/L Na solution, 500 mL FDA bottle NaCl SOLUTIONS FOR HI 931100HI 7081M 30 g/L NaCl solution, 230 mL bottle HI 8081M 30 g/L NaCl solution, 230 mL FDA bottle HI 7081L 30 g/L NaCl solution, 500 mL bottle HI 8081L 30 g/L NaCl solution, 500 mL FDA bottle HI 7083M 3.0 g/L NaCl solution, 230 mL bottle HI 8083M 3.0 g/L NaCl solution, 230 mL FDA bottle HI 7083L 3.0 g/L NaCl solution, 500 mL bottle HI 8083L 3.0 g/L NaCl solution, 500 mL FDA bottle HI 7085M 0.3 g/L NaCl solution, 230 mL bottle HI 8085M 0.3 g/L NaCl solution, 230 mL FDA bottle HI 7085L 0.3 g/L NaCl solution, 500 mL bottle HI 8085L 0.3 g/L NaCl solution, 500 mL FDA bottle HI 7090M ISA solution, 230 mL bottleHI 8090M ISA solution, 230 mL FDA bottle HI 7090L ISA solution, 500 mL bottleHI 8090L ISA solution, 500 mL FDA bottle ELECTRODE MAINTENANCE SOLUTIONSHI 7061M General cleaning solution, 230 mL bottle HI 8061M General cleaning solution, 230 mL FDAbottleHI 7061LGeneral cleaning solution, 500 mL bottleIf the batteries become weak the LCD will display the "LOW BAT"indication.Battery replacement must only take place in a safe area and using the battery type specified in this instruction manual.To replace batteries, remove the two screws on the rear cover and replace all four 1.5V AA batteries with new ones, while paying attention to the correct polarity. Replace the cover and tighten the twoscrews.HI 8061L General cleaning solution, 500 mL FDA bottleHI 7073M Protein cleaning solution, 230mL bottleHI 8073M Protein cleaning solution, 230mL FDA bottleHI 7073L Protein cleaning solution, 500mL bottle HI 8073L Protein cleaning solution, 500mL FDA bottleHI 7074M Inorganic cleaning solution, 230mL bottle HI 7074L Inorganic cleaning solution, 500mL bottle HI 7077M Oil & Fat cleaning solution, 230 mL bottle HI 8077M Oil & Fat cleaning solution, 230 mL FDA bottleHI 7077L Oil & Fat cleaning solution, 500 mL bottle HI 8077L Oil & Fat cleaning solution, 500 mL FDA bottleHI 80931M KCl + AgCl electrolyte solution, 4 x50 mL bottleOTHER ACCESSORIESHI 98501ChecktempC electronic thermometerwith penetration, stainless steel probeand 0.1°C resolution (range: -50.0 to150.0°C)FC 300B Sodium electrode, glass body, singlejunction, refillable, with BNC connec-tor and 1 m (3.3') cableHI 190M/D Mini-stirrer 230 V (1 liter max stirringcapacity, speed range from 100 tomax 1000 rpm)HI 190M/U Mini-stirrer 115 V (1 liter max stirringcapacity, speed range from 100 tomax 1000 rpm)HI 710031Rugged carrying caseHI 7662Stainless steel temperature probe with1 m (3.3') cableHI 76405Electrode holder All Hanna Instruments meters are warranted for two years against defects in workmanship and mate-rials when used for their intended purpose and main-tained according to instructions.Electrodes and probes are warranted for six months.This warranty is limited to repair or replacement free of charge.Damages due to accident, misuse, tampering or lack of prescribed maintenance are not covered.If service is required, contact the dealer from whom you purchased the instrument. If under warranty, report the model number, date of purchase, serial number and the nature of the failure.If the repair is not covered by the warranty, you will be notified of the charges incurred.If the instrument is to be returned to Hanna Instru-ments, first obtain a Returned Goods Authorization Number from the Customer Service department and then send it with shipment costs prepaid.When shipping any instrument, make sure it is prop-erly packaged for complete protection.Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice.2928Recommendations for UsersBefore using these products, make sure that they are entirelysuitable for the environment in which they are used.Operation of these instruments in residential area could causeunacceptable interferences to radio and TV equipments, requiringthe operator to take all necessary steps to correct interferences.Any variation introduced by the user to the supplied equipmentmay degrade the instruments' EMC performance.To avoid electrical shock, do not use these instruments whenvoltages at the measurement surface exceed 24 Vac or 60 Vdc.To avoid damages or burns, do not perform any measurement inmicrowave ovens.303132MANNACLR2 08/05Australia:Tel. (03) 9769.0666 • Fax (03) 9769.0699China:Tel. (10) 88570068 • Fax (10) 88570060Egypt:Tel. & Fax (02) 2758.683Germany:Tel. (07851) 9129-0 • Fax (07851) 9129-99Greece:Tel. (210) 823.5192 • Fax (210) 884.0210Indonesia:Tel. (21) 4584.2941 • Fax (21) 4584.2942Japan:Tel. (03) 3258.9565 • Fax (03) 3258.9567Korea:Tel. (02) 2278.5147 • Fax (02) 2264.1729Malaysia:Tel. (603) 5638.9940 • Fax (603) 5638.9829Singapore:Tel. 6296.7118 • Fax 6291.6906South Africa:Tel. (011) 615.6076 • Fax (011) 615.8582Taiwan:Tel. 886.2.2739.3014 • Fax 886.2.2739.2983Thailand:Tel. 66.2619.0708 • Fax 66.2619.0061United King dom:Tel. (01525) 850.855 • Fax (01525) 853.668USA:Tel. (401) 765.7500 • Fax (401) 765.7575For e-mail contacts and complete list of Sales and Technical offices, please see。
纳氏试剂比色法直接测定海水中的氨氮(1)(精)
纳氏试剂比色法直接测定海水中的氨氮陈迪军・监测与分析・纳氏试剂比色法直接测定海水中的氨氮MensurateNH+4-NDirectl yinSeaWaterUsin gNessler ’sRea gent -Colorimetr y陈迪军闫修花王桂珍朱孔颖胡迎利(江苏省赣榆县环境保护局赣榆222100摘要用纳氏试剂比色法直接测定海水中的氨氮, 着重进行了酒石酸钾钠—氢氧化钠为掩蔽剂的方法条件试验。
方法检出范围为0.05～2.00m g ΠL, 方法相对盐度范围为10～32的海水可以直接测定。
关键词氨氮纳氏试剂比色法海水Abstract Theex perimentmensuratedNH was0.05-2.00mg ΠL.Theseawatersam+4+4-Ninseawaterdirectl ywithNessler ’srea gentcolorimetr y.Theconditionwithy.thera ggedrea gentofPotessiumsodiumtartrate-NaOH ’ss ystemtousethismethodwasresearchedesplewhichrelativesaltde Keywords NH -N Nessler ’sRea gent Colorimetry环境质量指标, [1-3]。
次溴酸盐氧化法不能用于污染较重, 含有机物较多的养殖水体且操作繁琐; 靛酚蓝分光光度法反应时间长, 不适于受污染海水及养殖海水的氨氮快速测定。
海水分析多为服务性的监测, 监测频率不高, 所配试剂部分浪费, 因此寻找一种可行有效的掩蔽方法, 用地面水氨氮的纳氏试剂法来分析海水中氨氮是一种切实可行的方法。
本文针对地面水中氨氮的纳氏试剂测定法之所以不适用于测定海水中的氨氮是因为海水中含有大量钙、镁离子, 易与纳氏试剂反应, 掩蔽剂无法掩蔽而引起水样浑浊的问题, 研究了以酒石酸钾钠—氢氧化钠溶液作掩蔽剂消除海水中钙、镁离子有的干扰, 从而实现用纳氏试剂直接测定海水中的氨氮。
哈纳刀形液滴传感器水浊度计（HI 93703-11）用户手册说明书
2Dear Customer,Thank you for choosing a Hanna product.Please read this instruction manual carefully before using the instrument.This manual will provide you with the necessary information for the correct use of the instrument.If you need additional technical information, do not hesitate to e-mail us at ******************directives.Preliminary Examination ............................3General Description....................................3Principle of Operation .................................5Functional Description................................6Specifications ............................................7Operational Guide ......................................8Measurement Procedure.......................8Log-on-demand ...................................11Cleaning Logged Data .........................11Viewing Logged Data ..........................12Viewing and setting Date and Time .....12Error Codes.........................................13Ensure Accurate Measurements.............14Sources of Interference.......................15Calibration................................................16Calibration Procedure..........................16Viewing Calibration Date .....................18Ensure Accurate Calibration................18Standard Suspension..........................19Battery Replacement ...............................20PC Connection.........................................21Accessories.............................................22Warranty.. (23)23Recommendations for UsersBefore using this product, make sure that it is entirely suitable for the environment in which it is used.Operation of this instrument in residential area could cause unacceptable interferences to radio and TV equipments, requiring the operator to take all necessary steps to correct interferences.Any variation introduced by the user to the supplied equipment may degrade the instrument's EMC performance.To avoid electrical shock, do not use this instrument when voltages at the measurement surface exceed 24 Vac or 60 Vdc.To avoid damages or burns, do not perform any measurement in microwaveovens.All Hanna Instruments meters are warranted for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instruc-tions. This warranty is limited to repair or replacement free of charge. Damages due to accidents, misuse, tampering or lack of pre-scribed maintenance are not covered.If service is required, contact the dealer from whom you purchased the instrument. If under warranty, report the model number, date of purchase, serial number and the nature of the failure. First obtain a Returned Goods Authori-zation number from the Customer Service de-partment, then return the instrument with the Authorization # included along with shipment costs prepaid. If the repair is not covered by the warranty, you will be notified of the charges.When shipping any instrument, make sure it is properly packaged for complete protection.All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner.3Remove the instrument from the packing material and examine it to make sure that no damage has occurred during shipping. If there is any damage,notify your Dealer.HI 93703-11 is supplied complete with:•Glass cuvet with cap •Batteries (4 x 1.5V AA)•Instruction manualNote : Save all packing material until you are sure that the instrument functions correctly. Any defective item must be returned in its original packaging with the supplied accessories.With HI 93703-11 turbidity measurements can be performed with high precision in the field as well as in the laboratory. HI93703-11 turbidity meter is a microprocessor-based instrument used to determine the turbidity of water and waste-water. The meter covers a 0-1000 FTU range in two scales: 0.00 to 50.00 FTU and 50to 1000 FTU. The autoranging feature of the instrument sets the appropriate range for the measurement.HI 93703-11 also includes a real-time clock and log-on-demand capability. The PC communication is made through a serial port of your computer and the 5-pin socket on the meter.Note:HI 93703-11 has been designedaccording to the ISO 7027 International Standard, consequently the turbidity measurement units are expressed in FTU (Formazine Turbidity Unit). FTU is identical to the other internationally recognized unit: NTU (NephelometricTurbidity Unit).22HI 731318Tissue for wiping cuvets (4pcs)HI 731321Spare glass cuvet (4pcs)HI 731313Maintenance kit: rugged carrying case including HI 93703-0 and HI 93703-10calibration solutions, HI 93703-50 cuvet cleaning solution, 1tissue for wiping cuvets and 2cuvetsHI 93703-0AMCO-AEPA-1 @0 FTU*calibration solution, 30 mL HI 93703-05AMCO-AEPA-1 @500 FTU*calibration solution, 30 mL HI 93703-10AMCO-AEPA-1 @10 FTU*calibration solution, 30 mL HI 93703-50Cuvet cleaning solution, 230mLHI 92000Windows ® compatible software HI 920011Serial cable for PC connection (5 to 9-pin)* 1 FTU = 1 NTU4The meter is housed in a rugged and lightweight case, with an easy-to-read LCD.To save battery-life, the instrument is equipped with an automatic shut-off feature which is activated after 5-minutes of non-use. This fea-ture is disabled when the meter is connected to the serial port of the computer.All operations can be carried out with only five keys and troubleshooting functions can be performed with displayed error code guides.A positive-locking system guarantees that the cuvet is firmly placed in the cell.The keypad is water-resistant and can be wiped with a moist cloth for quick cleanups.Two or three point calibration (0,10, 500 FTU*)can be easily performed using available stan-dards, and the last calibration date is auto-matically stored for future retrivial.We have chosen 10 FTU * as the standard calibration point because it best fits the water turbidity measurements in different applications, from drinking water to waste-water treatment.HANNA instruments ® uses the primary stan-dard AMCO-AEPA-1 to avoid all formazine-related problems. Formazine is a toxic, un-stable substance, which requires particular care:its standards have to be prepared only a few minutes before performing the calibration, and cannot be reused because of their short life.HANNA instruments ® standards are extremely stable, can be reused, and last up to six months, if free from contamination.HI 93703-11 can be used with both standards.* 1 FTU = 1 NTU21Battery replacement must only take place in a safe area and using 1.5V AA alkaline batteries.To install or replace the batteries, turn the unit off and remove the battery compartment cover on the raer of the meter.Insert the new batteries while paying attention to the polarity.After the batteries have been installed, close the battery cover and make sure the gasket is in place before tightening the 2 screws, to ensure a watertight seal.POTSTo communicate with the instrument through the HI 92000 software, use the HI 920011 cable (optional) to connect a serial port of your com-puter to the 5 pin connector of the meter.When connected the meter will maintain full functionality, being able to perform a data trans-fer while the meter is being operated.Notes :• Serial communication is not allowed when the meter is being calibrated.• The auto shut-off feature is also disabled when the meter is connected to a computer.5IR LEDCUVETLIGHT DETECTORLIGHT* 1 FTU = 1 NTUHI 93703-11 has been designed to perform measurements according to the ISO 7027 In-ternational Standard.The instrument functions by passing a beam of infrared light through a vial containing the sample being measured.A sensor, positioned at 90° with respect to the direction of light, detects the amount of light scattered by the undissolved particles present in the sample. The microprocessor converts such readings into FTU* values.As noted above, FTU unit is equal to the NTU unit. However, there are other known measure-ment units for turbidity: Jackson Turbidity Unit (JTU) based on the old method of Jackson's candle, and Silica Unit (mg /L of SiO 2). For your reference the conversion table between these measurement units is shown below:JTUFTU/NTUSiO 2 (mg/L)JTU119 2.5FTU/NTU 0.05310.13SiO 2 (mg /L)0.47.5120All components have been selected to mini-mize current drain without compromising func-tionality. In order to minimize the battery con-sumption, the meter is equipped with an auto-shut off function which switches the meter off after 5 minutes of non-use.The four 1.5V batteries guarantee 60 hours of working life (or 900 measurements).In order to obtain accurate measurements, the battery level is monitored every time the meter is switched on.In addition, a "LO BAT " indication will appear on the lower right corner of the display when the batteries are weak (<10%). All four batteries need to be replaced.When the batteries are too weak to ensure reliable measurements, the message 0% LO BAT appears for a few seconds, and then the meter will automatically switch itself off. Re-place the batteries immediately.61)Measurement cell2)LCD (Liquid Crystal Display)3)ON/OFF/CLR key, to turn the meter ON and OFF, and to clear log memory4)GLP/CAL key, to display last calibration date & time, and to enter calibration mode 5)STO/VIEW key, to store sample after read-ing, and to view log memory6)READ/DATE key, to perform measure-ments, and to display (toggle) current date/time7)ALT key, to activate the second functions (second function keys in orange)8)RS232 connector (5 pin)19* 1 FTU = 1 NTUSTANDARD SUSPENSIONPresently, there are only two recognized pri-mary standards: AMCO-AEPA-1 and formazine.Hanna supplies HI 93703-11 with the AMCO-AEPA-1 which has a much longer shelf life at all concentrations (approx. six months, if free from contamination). In addition, no special handling or disposal is required and a much higher stability of suspended particles has been ob-served.On the other hand, formazine is a toxic sub-stance, generated by a known carcinogen, with poor stability (particles flocculate and settle quickly). Lower concentrations change value within a few days or hours after dilution.The consistency of HI 93703-11 readings by using both standards has been separately es-tablished by Advanced Polymer Systems and Hanna Instruments.Additional documentation about the formazine standard and more complex calibration proce-dures is available upon request.•All glassware that comes into contact with standards should be maintained clean. Wash with the HI 93703-50 cleaning solution and rinse with HI 93703-0 or turbidity free water.•Rinse the vial twice with 5 ml of the liquid to be tested. This removes the effect of any previous liquid and any dust or foreign ob-jects that may be present inside. Gently pour the liquid down the side of the vial to reduce air bubbles (no mixing is required when HI 93703-0 and HI 93703-10 AMCO-AEPA-1standards are used).•Before inserting the vial into the instrument,wipe it with HI93703-70 or a soft, lint-free tissue. Handle vials so that no fingerprints can get on the areas where light passes (approx. bottom 2cm/1").7* 1 FTU = 1 NTURange 0.00 to 50.00 FTU *50 to 1000 FTU *Resolution 0.01 and 1 FTU *Accuracy±0.5 FTU* or±5% of reading (whichever is greater)Typical EMC Deviation ±2% FS Calibration 3 point (0, 10 and 500 FTU*)Light SourceInfrared LED Light Source Life Life of the instrument Light Detector Silicon photocellData Logging199 measurements, on-demand PC Connection Through serial port,using HI 920011 connection cable and HI 92000 Windows ® compatible software Battery Type4 x 1.5V AA alkaline batteries Battery Life Approx. 60 hours of continuous useor 900 measurementsAuto-offAfter 5 minutes of non-use Environment 0 to 50°C (32 to 122°F);RH max 95% non-condensingDimensions 220 x 82 x 66 mm (8.7 x 3.2 x 2.6")Weight510 g (1.1 lb.)18•After approximately 30 seconds the LCD will display "----".Now the instrument is calibrated and ready for use.NOTE: If "ERR1" is displayed, the calibra-tion data is maintained.VIEWING CALIBRATION DATE To display the last cali-bration time and date,press the GLP button to toggle through the date and time. If the display shows "FS", the instru-ment has factory calibra-tion settings loaded and no date will be displayed.VIEWING FIRMWARE VERSIONTo display the firmware version press and hold the ON/OFF key for approx. ten seconds (when turning the meter on).The firmware version will be displayedENSURE ACCURATE CALIBRATIONThe procedure below should be carefully fol-lowed during testing and calibration:8To prepare the instrument for taking measurements, first install the batteries (see Battery Replacement section on page 20) and then turn the instrument on.To maximize battery-life, the display is automatically switched off after 5-minutes of non-use. To reactivate the display, simply press the ON/OFF key.MEASUREMENT PROCEDURE:•Turn the meter on by pressing the ON/OFF key.•The meter will carry out a self-test display-ing a full set of figures.•The meter will carry out a battery test show-ing in percentage the battery life left.•When the LCD dis-plays “----” the meter is ready to measure.•Fill a clean cuvet up to one quar-ter inch (0.5cm) from its rim with the thoroughly agitated sample.•Allow sufficient time for bubbles to escape before securing the cap.Note:do not overtighten the cap.17•If "ERR1" appearson the LCD, please check the standard solution.•After approximately 30 seconds the meter will display 10.00, prompting the user to place the 10.00 FTU standard solution in the cuvet holder.•Place the 10.00 FTUstandard in the holder press CAL, SIP and CL will start blinking•After approximately30 seconds the meterwill display 500, asking the user to place the 500 FTU buffer solution in the cuvetholder.NOTE: At this point theuser can save the two point calibration setup by pressing ALT & CAL buttons,To perform a three point calibration, place the 500FTU standard solution in the cuvet holder.•Press CAL, SIP and CL will start blinking9NOTE: Wipe the cuvet thoroughly with a lint-free tissue (HI 93703-70) before in-serting into the measurement cell.The cuvet must be completely free of fingerprints and other oil or dirt, par-2 cm/1").•cu re ly int o t groove.•The mark on the cuvet cap should point towards the LCD.•onds.16To check the date of last calibration, simply press the GLP/CAL key. Press again to toggle between date and time.To make sure that the meter is calibrated, take a measure of a standard solution.The instrument can be calibrated at two or three points and a monthly calibration is recom-mended.CALIBRATION PROCEDURE •Turn the meter on and wait for the display to show "----".•Press the ALT & CALbuttons together. The "CAL" message will blink on the display 3times. The meter then enters the calibrationmode, displaying "0.00cl" and prompting the user to insert the 0.00FTU standard.••Press CAL, SIP and CL will start blinking10* 1 FTU = 1 NTU•Even though HI93703-11 covers a very wide range of turbidity values, for very accurate measurements of samples ex-ceeding 40FTU*, Standard Methods re-quire dilution. In such cases, the correct amount of HI 93703-0 or turbidity-free water to be added to the sample can be calculated as follows:Vos = 3000 / T where:Vos = volume of sample (mL) to becombined with HI 93703-0 to obtain the final volume of 100mL.T =HI 93703 reading (exceeding40FTU*)E.g.:HI 93703 reading = 200 FTU *3000 / 200 = 15 mL (Vos)15 mL (Vos)+85 mL (HI93703-0) = 100 mL At this point, take a sample of this solution and measure its turbidity.The correct turbidity value of the original sample will be:T n x 100 mL / Vos = T awhere:T n = new HI 93703 readingT a =actual turbidity value of the originalsample E.g.If T n = 27 FTU *T a = 27 FTU *x100 mL / 15 mL = 180 FTU *NOTE: Any sample taken above 1000 FTU will show out of range by blinking "1000".15* 1 FTU = 1 NTUhours (the sample needs to be kept at room temperature prior to the analysis).•To obtain a representative sample, gently,but thoroughly, mix it before samples are taken. Do not shake (to prevent air bubbles)and do not let the sample settle.•It is recommended to calibrate the meter with the supplied HI 93703-10 @10 FTU* stan-dard at least once a month or more frequently for greater accuracy.•Before inserting vials into the instrument,wipe them with HI 93703-70 or a soft, lint-free tissue. Handle vials so that no finger-prints get on the areas where light passes (approx. the bottom 2 cm/1 inch).If you experience any problems in taking mea-surements, contact your dealer or the nearest Hanna Customer Service Center.SOURCES OF INTERFERENCE•Presence of floating debris and coarse sedi-ments which settle out rapidly will give false readings.•The infrared light source used for HI 93703-11 turbidity meter, complies with the ISO 7027 International Standard and can effec-tively minimize any errors due to colored dissolved substances. This effect, called "true color", is a common interference for most commercially available instruments operating in the range of visible light.•Air bubbles and the effect of vibrations that disturb the surface of the sample may give false results and should be avoided.•Dirty glassware could also affect readings along with scratched or dented vials.11LOG-ON-DEMAND:•right corner the reference number of the stored sample.NOTE: When the maximum number of samples has been reached (199), the LCD dis-play will show "FULL".This is a warning that you will be overwrit-ing the oldest sample recorded. To store the current sample, press the STO button again and this will overwrite the oldest sample in the memory. All samples are shifted (reference numbers reduced by one). Sample number one remains the oldest sample.CLEARING LOGGED DATA:•Press the ALT &CLR buttons to-gether. The display will show "CLR" for confirmation. Press ALT & CLR again to clear memory. To abort the operation,press any button.ALL SAMPLES PREVIOUSLY STORED WILL BE ERASED FROM MEMORY!14•Real Time Clockerror∗•EEPROM error ∗•Internal communica-tion error ∗•Internal Bus error ∗∗ Contact the HANNA office nearest to you.ENSURE ACCURATE MEASUREMENTS •Each time the cuvet is used, tighten the cap to the same degree.•Discard the sample soon after the reading is taken to avoid permanently clouding t he g lass.•All glassware used to contain the standards and the samples should be maintained clean,washed with the HI93703-50 cleaning solution and rinsed with HI 93703-0 or turbidity-free water.•Collect the samples in clean glass or plastic bottles, fit stoppers and perform the analysis quickly. If necessary, store the sample in a cool, dark place, for up to a maximum of 2412VIEWING LOGGED DATA:•played.•Press the right arrow to scroll between turbidity value, date and time of the sample.•Press the UP/DOWN arrows to view the samples and use the right arrow to scroll the date and time .•Press ALT & VIEW again to exit this mode.VIEWING AND SETTING DATE AND TIME:VIEWING:•between date and time.SETTING:•for 3-4 seconds.•and set the year.•13month and day, use UP/DOWN to set.•Press right arrow again to scroll to time, use UP/DOWN to set.•and time setup.Note: Press ALT & DATE to leave this mode without saving.ERROR CODES:Every time the meter is switched on, the Real Time Clock and EEPROM are tested, and if an error is found the corresponding error code will be displayed.The list of error codes is as follows:•NO cover error (check cuvet position)•Calibration error(check calibration standard value)。
操作指南(哈纳)
显示信息说明
FUNCTIONAL DESCRIPTION
离子测量仪在不同状态下显示不同符号：
h E0
-E
Lotat
仪器进入正常测量状态 表示样品吸光度偏高，或可能测量池被污染。 表示水样超出测量范围或水样过于浑浊 表示水样低于测量最小值 表示电量偏低需更换电池
表示水样超出测量范围或水样过于浑浊
5. 需要回到用户校正模式，可按 MODE 键，即可显示 SEL 和 cAL，为激活用户校正模式。 （当用户进行过校准时） Mode
6. 按 ON/OFF 键退出设定模式。
On Off
加入试剂的正确步骤
应以正确的方法加入试剂。 药片试剂：药片试剂从锡箔纸中取出后，应直接放入水样中而不要用手指触摸。 液体试剂：垂直拿住试剂瓶，慢慢地挤出几滴同样量的试剂，加入到比色瓶中。用后注意不同 试剂瓶的瓶盖。注意试剂的保存方法（如冷凉、干燥）。 粉末试剂：
用于分析的试剂瓶、比色皿和其它附件的清洗 每次分析后，均要将比色瓶、瓶盖和搅拌子仔细清洗，以防止干扰。过程如下： 每次分析后，要尽快清洗比色瓶和其它附件。
A. 用实验室清洁剂清洗比色瓶和其它附件。 B. 用自来水仔细清洗。 C. 根据需要（见注意事项），用稀释的盐酸溶液漂洗。 D. 用去离子水仔细漂洗。
力摇动比色皿使气泡溶解。 6. 渗入样品池中的水会损坏和腐蚀色度计中的电子元件，因此，操作时要避免水样渗透。 7. 透镜污染（发光二极管和光传感器）会导致测量误差。因此，请定期检查并清扫（如有必要
清洁，请使用湿布或棉花）样品池的入光面。 8. 请将片剂直接从锡箔包装加入到水样中，避免用手接触。 9. 光度计和测量环境的较大温差会导致测量不准确，因此，请确 保两者的适当温差。 10. 为避免偏路光引起的测量失误，请避免在明亮的日光下使用此仪器。 11. 测量前请确保比色皿外壁干燥清洁，指纹或水印都会导致测量不准。
【标准版】余氯分析仪(HACH9184sc)操作校验技术规程
余氯分析仪（HACH9184sc）操作校验技术规程1.用途说明本技术规程适用于HACH公司9184sc氯分析仪（传感器为9184scTFC，控制器为sc100）。
9184sc氯分析仪是一台在线的单通道工业分析仪，它可以测量自来水厂以及管网中的余氯，以及其它需要监测ppm和ppb级余氯的应用场合。
2.工作原理该仪器使用的是电流法测量HOCL浓度。
膜允许HOCL分子选择性地通过从而到电流传感器。
该测量可以对PH值和温度进行补偿。
总余氯（TFC）：HOCL+CLO-这是由溶解态的氯（在PH值较低的情况下）、次氯酸气体和次氯酸盐离子组成。
这些物质共存的情况下，它们所占的比率取决于PH值和温度。
CL2，HOCL和CLO-所占的比例是PH的函数。
如图：分解反应如下：Cl2+H2O→H++Cl-＋HOCl，pK1=4.6，25℃时HOCl→H++ClO-，pK2=7.5，25℃时注意：分解常数是受温度影响这一点也很重要。
电流传感器由以下几部分组成：金工作电极（阴极），主要反应都在该电极上发生；银参比电极（阳极）；KCL（氯化钾）电解液；对次氯酸（HOCL）有选择透过性的微孔膜。
水样中的次氯酸分子通过膜进入到包含在电解液中的膜和阴极之间的一个薄区域。
工作电极上应用了一个恒定的电势，在这个电极上，HOCL根据下列的反应被还原：HOCl+H++2e-→Cl-+H2O在银电极上（阳极），银被氧化成银离子：2Cl-+2Ag+→2AgCl+2e-次氯酸在阴极上的还原能产生电流，这个电流与水样中次氯酸的分压成正比。
电化学反应和在膜上的扩散都取决于温度。
因此，测量池中有一个温度传感器，允许对温度进行自动补偿。
9184sc氯传感器可以测量次氯酸，次氯酸的浓度与PH值有关。
因此有必要控制水样的PH值保持在一定的范围中，从而可以获得最优的性能。
对于次氯酸传感器，在PH值超过8之前，准确度能维持在2％，当PH值超过8以后，准确度迅速下降。
哈纳HANNA多参数微电脑离子浓度测定仪系列产品资料
HI83206 24 项水质测量指标······················6.9
HI83207 20 项水质测量指标······················6.10
HI83208 23 项水质测量指标······················6.11
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HI83209 23 项水质测量指标······················6.12
6
CONTENTS
PPHHOOTTOMOEMTEERTSERS
HI83200 45 项水质测量指标······················6.5
HI83203 13 项水质测量指标······················6.7
HI83205 24 项水质测量指标······················6.8
HI83200 HI83203 HI83205 HI83206 HI83207 HI83208 HI83209 HI83210 HI83211 HI83212 HI83213 HI83215 HI83216 HI83218 HI83225 HI83226 HI83099
测量项目
铝 -Al（Aluminum）
锰 HR Mn
0.0 to 20.0 mg/L Mn
锰 LR Mn
0 to 300 µg/L Mn
钼 Mo
0.0 to 40.0 mg/L Mo
镍 HR Ni
0.00 to 7.00 g/L Ni
镍 LR Ni
0.000 to 1.000 mg/L Ni
硝酸盐 NO3
0.0 to 30.0 mg/L NO3
••••
••••
••
•
钾 -K（Potassium）
饮用水源地水中典型消毒副产物的快速检测方法
Advances in Environmental Protection 环境保护前沿, 2023, 13(1), 11-18 Published Online February 2023 in Hans. https:///journal/aep https:///10.12677/aep.2023.131002饮用水源地水中典型消毒副产物的快速检测方法黄佳乐，李兆华，冯 如，康 群，李 盈，刘 伟，温丽莲*湖北大学资源与环境学院，湖北 武汉收稿日期：2023年1月1日；录用日期：2023年1月30日；发布日期：2023年2月7日摘要 为快速检测饮用水源地水中典型消毒副产物的含量，建立GC 法同时快速测定三氯甲烷、三溴甲烷、二氯乙腈的含量和HPLC 法快速测定三氯乙酸的含量。
结果表明，在11 min 内三氯甲烷、三溴甲烷、二氯乙腈完全分离；三氯乙酸在5 min 内出峰。
当浓度在5~80 µg/mL 时峰面积与浓度呈现良好的线性关系，R 2为0.99932~0.99991；加标回收率为95.9%~102.65%，精密度RSD 为0.53%~1.1%，检测限为34~75 µg/L 。
因此，饮用水中4种典型消毒副产物的测定方法，具有良好的重现性、回收率和精密度，为饮用水源地水中消毒副产物污染的研究提供技术支持。
关键词饮用水源地，消毒副产物，三氯甲烷，三溴甲烷，二氯乙腈，三氯乙酸，GC 法，HPLC 法Rapid Detection of Typical Disinfection By-Products in Drinking Water SourceJiale Huang, Zhaohua Li, Ru Feng, Qun Kang, Ying Li, Wei Liu, Lilian Wen *College of Resource and Environment, Hubei University, Wuhan Hubei Received: Jan. 1st , 2023; accepted: Jan. 30th , 2023; published: Feb. 7th , 2023AbstractTo rapidly detect the levels of typical disinfection by-products in drinking water sources, we de-veloped GC method to simultaneously and rapidly detect the concentrations of trichloromethane, tribromomethane, dichloroacetonitrile and HPLC method for trichloroacetic acid. Results showed that trichloromethane, tribromomethane and dichloroacetonitrile were completely separated *通讯作者。
【Hach实验室产品】余氯及测定方法
6-1000ug/L
试纸 余氯测量量程及方法
余氯 试纸
测量量程 (mg/L)
测量色阶
游离氯&总氯 0-10.0 0,0.5,1.0,2.0,4.0,10.0
余氯试纸的使用方法
重要销售工具
• 哈希公司英文网站: hach • －仪器手册、技术资料免费下载 （内容全面，
总氯
DPD法
0.02-0.20 符合USEPA饮用水 带有余氯试剂 0.1-8.0 、污水测量标准 分装器
余氯试剂选型
项目
游离氯
测量范围 ( mg/L) 测量方法
0. 02- 2. 00 DPD法（2105569）
0. 09- 5. 0
高量程 0. 1- 10. 0
超低量程 2- 500ug/L
DPD法 DPD法 DPD法
DR6000 DR3900 DR1900
DR6000 紫外可见分光光度计
DR900 便携式比色计
DR3900 分光光度计
DR1900 便携式分光光度计
PCII余氯/总氯袖珍比色计 测量量程及方法
余氯袖珍比色计 型号
测量参数
测量方法
测量量程 (mg/L)
符合标准
附件
58700-00
58700-12 58700-23
分光光度计及多参数比色计 余氯测量量程及方法
项目
测量范围 (mg/L)
测量方法 所需试剂
包装
特殊装置
0.02-2.00
DPD法 粉枕 安瓿瓶
--
游离氯
0.09-5.0
DPD法 TNT预制试
剂管
--
高量程 0.1-10.0 DPD法