水中挥发酚的测定方法比较

化学与生物工程2019,Vol.36No.02一www.hx y sw g https://www.360docs.net/doc/2e4549183.html,

一Chemistr y &Bioen g ineerin g 基金项目:广西土壤污染与生态修复人才小高地专项资金

收稿日期:2018-11-16作者简介:王琳(1984-),男,广西玉林人,工程师,硕士研究生,研究方向:环境保护和环境监测,E -mail :466327213@qq .com 三doi :10.3969/j .issn.1672-5425.2019.02.015王琳,韦锋,曾健华,等.水中挥发酚的测定方法比较[J ].化学与生物工程,2019,36(2):65-68.

WANG L ,WEI F ,ZENG J H ,et https://www.360docs.net/doc/2e4549183.html, p arison of determination method of volatile p henol in water [J ].Chemistr y &Bioen g ineer -

in g ,2019,36(2):65-68.水中挥发酚的测定方法比较

王一琳,韦一锋,曾健华,姜同强,黎一宁(广西壮族自治区环境监测中心站,广西南宁530028)

摘一要:采用4-氨基安替比林法二流动注射法和在线分析法分别测定水中挥发酚,比较了3种方法对水中挥发酚测定的适用性三结果表明,3种方法测定挥发酚的线性关系良好,线性相关系数均在0.9992以上;3种方法测定有证标准物质和实际水样中挥发酚的加标回收率均满足质控要求;3种方法测定不同水样中挥发酚的结果无显著性差异,其中,4-

氨基安替比林直接分光光度法对废水样品中的挥发酚测定更有优势,流动注射法比较适合地表水中的挥发酚测定,而在线分析法仅用于环境污染事故中挥发酚的应急监测三

关键词:挥发酚;方法适用性;4-氨基安替比林法;流动注射法;在线分析法中图分类号:X832一一一一文献标识码:A一一一一文章编号:1672-5425(2019)02-0065-04Com p arison of Determination Method of Volatile Phenol in Water WANG Lin ,WEI Fen g ,ZENG Jianhua ,JIANG Ton gq ian g ,LI Nin g (Guan g xi Zhuan g Autonomous Re g ion Environmental Monitorin g Center ,Nannin g 530028,China )Abstract :We determined volatile p henol in water b y 4-aminoanti py rine method ,flow in j ection method ,and online anal y sis method ,and com p ared the a pp licabilit y of the three methods.The results show that the three methods have g ood linear relationshi p with the linear correlation coefficients all above 0.9992.The recoveries of volatile p henol in certified reference materials and actual water sam p les meet the re q uirements of q ualit y con -trol.There are no si g nificant differences for the determination of volatile p henol in water sam p les b y the three methods.Amon g them ,the direct s p ectro p hotometr y of 4-aminoanti py rine shows an advanta g e in the determina -tion of volatile p henol in wastewater sam p les ,the flow in j ection method is more suitable for the determination of volatile p henol in surface water ,while the online anal y sis method can be used for emer g enc y monitorin g of vola -tile p henol in environmental p ollution accidents onl y .Ke y words :volatile p henol ;method a pp licabilit y ;4-aminoanti py rine method ;flow in j ection method ;online a -

nal y sis method 一一炼焦二炼油二煤洗和造纸等工业废水排放到河流后,具有致突变毒性二致畸和致癌等特性的挥发酚类化合物对人体和鱼类产生持久危害[1-2]三由于环境的承载能力和允许排放容量有限,国家规定地表水中的挥

发酚浓度必须符合‘地表水环境质量标准限值“(GB 3838-2002)中Ⅲ类水质评价标准限值(?0.005m g

四L -1)三故挥发酚是国家地表水环境中必须监测的重要指标三

挥发酚是指沸点低于230?并可随水蒸气蒸馏出来的酚类化合物,通常以苯酚等一元酚为主[3-4]三自来水厂对含酚的地表水进行加氯处理时,因酚类化合物的羟基比较活跃而形成有强烈臭味的氯酚[5],长期饮万方数据