Comparison of results for 13 clinical laboratory determinations with three automated analytical systems

The authors evaluated the Abbott Bichromatic Analyzer 100 (ABA 100) for use in the routine clinical chemistry laboratory by examining 13 different determinations that can be performed on the instrument. Results with the Du Pont 'aca' and Technicon continuous flow systems were compared to the ABA 100 in terms of upper limits of linearity, inter run coefficient of variation, and results for samples from patients. The upper limits of linearity for the methods on the ABA 100 exceeded all of those for the continuous flow systems, except for urea nitrogen. Precision of the ABA 100 was as good as or better than that of the aca for all determinations, except for glucose in a normal control serum and creatine kinase and creatinine in an above normal control serum.