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Clinical Chemistry 27: 325-327, 1981;
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Clinical Chemistry, Vol 27, 325-327, Copyright © 1981 by American Association for Clinical Chemistry

Evaluation of the operating characteristics of a bichromatic analyzer, the ABA-200

RC Elser and CG Garver

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.




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Copyright © 1981 by the American Association for Clinical Chemistry.