title: Evaluation of the operating characteristics of a bichromatic analyzer, the ABA-200.
abstract: We investigated certain operating characteristics of a new bichromatic analyzer, the ABA-200. The reliability of filter factor assignments was found to be within 3% for NADH and p-nitroaniline, 6% for p-nitrophenol. The accuracy and precision of the dilutor is a function of dilution ratio and sample size. Accuracy of dilution ratio was within 3% at all ratios tested except 1:201 at a sample volume of 1.25 microL. Coefficients of variation were less than 1.3% at all ratios. Photometric linearity was observed to 3.2 Ad for all filter sets. Photometric precision measurements showed a CV of 0.27% at an absorbance difference of 1.0.
mesh_terms: D001322:Autoanalysis; D001774:Blood Chemical Analysis; D001786:Blood Glucose / Q000032:analysis; D005069:Evaluation Studies as Topic; D006801:Humans
chemical_list: D001786:Blood Glucose