Measure

item

The data processing of common regression analysis

A

a

b

r

ρ

s

RSD

/μg

/(μg・mL−1)

/(μg・mL−1)

ρ/(μg・mL−1)

1%

Standard

20.0

0.067

0.068

Series

40.0

0.151

0.152

Solution

60.0

0.240

0.235

−0.0155

0.00418

0.9997

of iron

80.0

0.314

0.318

100.0

0.403

0.402

Specimen

22.2

0.077

5.54

Solution

33.7

0.125

5.61

5.73

0.276

4.82

60.5

0.237

6.05