线性误差数据处理表

线性回归中斜率与截距的计算

浓度标值信号值Ci(测得值)

(1)直线方程:Ii=a+bCi00.0040.035

(2)斜率b:b=0.05450.50.02820.479

(3)截距:a=0.002110.0582 1.030

(4)相关系数:r=0.9996730.1652 2.993

-0.038 Scc= 6.2-0.038 Sii=0

Sci=0.33786

线性误差△Xi

线性误差△Xi％

0.0041S A＝0.00050.1647AV=0.035#DIV/0!0.0038检测限＝0.0259810.1633SA=-0.021-4.10.00450.1678RSD%=0.030 3.00.00390.1649-0.007-0.20.00420.1638

-0.038#DIV/0!0.00530.1652

-0.038

#DIV/0!

0.00420.1667

0.0040.00440.00510.0043

检测限＝

重复性

0.1652

0.0016

0.9546重复性＝