Abstract
The cobas c 111, a new low volume bench-top analyzer from Roche Diagnostics (Indianapolis, IN), was evaluated to determine whether the operational and performance characteristics of the system would make it a good fit for the physicians’ office laboratories and hospital stat labs in the Laboratory Corporation of America (LabCorp) network. Twenty-five frequently ordered analytes were evaluated relative to the published specifications of the cobas c 111. Additionally correlation studies, using patient serum samples, were used to determine inter-instrument comparability between 2 cobas c 111 instruments and accuracy relative to the standardized assays at LabCorp. Precision, linearity, method comparison to another large Roche system, inter-instrument comparability, potential carryover, and time to result studies met or exceeded expectations. Additionally, sigma metrics analyses graded the overall performance of this analyzer as world class. The analytical performance, compact size, intuitive operation along with the expected low maintenance and reliability make the cobas c 111 a good fit for the intended small laboratory niche environment at LabCorp.
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