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Table 1 Intra-day Imprecision for Modified MTX Assay

From: Modified enzyme multiplied immunoassay technique of methotrexate assay to improve sensitivity and reduce cost

Level

Target

Mean

SD

%CV

%Bias

1

0.05

0.050

0.004

9.43

< 0.01

2

0.12

0.121

0.010

8.22

0.83%

3

0.43

0.428

0.021

5.02

−0.47%

4

0.82

0.817

0.026

3.22

−0.37%

  1. N = 10, Unit: μmol/L