Blank absorbency: A340 nm(main) / A405 nm(sub) determination of blank absorbency should ≤ 1.5000.
Accuracy: The quality control product is used for measurement. The average value of the measurement results should be within the range of quality control target values.
Precision: a, repeatability: repeated determination of the same serum sample or quality control at different concentrations 10 times, and the coefficient of variation(CV %) of the measured value should not be greater than 10 %.
B, interbatch difference: the relatively poor inter-batch(R) for randomly selecting three batch kits should ≤ 12 %.
C, calibration bottle precision density(0 concentration point does not participate in the detection): calibration bottle precision should ≤ 10 %.
D, calibrate the precision between bottles: calibrate the precision between bottles should ≤ 10 %.
Linear: in[ 1.0, 40.0] In the μg / mL range, the linear correlation coefficient R ≥ 0.990, in[ 1.0, 10.0] The linear deviation in the μg / mL range should not exceed ± 1.5 μg / mL in(10,40.0] The determination deviation within the μg / mL range should not exceed ± 15 %.
Sensitivity: When the sample concentration is 10 μg / mL, the absorption rate changes ≥ 0.0020.