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Comparative Study
. 1980 Nov;46(11):792-8.

Colorimetric rate method for the determination of creatinine as implemented by the Beckman Creatinine Analyzer 2

O R Flores, L Sun, N D Vaziri, D S Miyada
  • PMID: 7246586
Comparative Study

Colorimetric rate method for the determination of creatinine as implemented by the Beckman Creatinine Analyzer 2

O R Flores et al. Am J Med Technol. 1980 Nov.

Abstract

We evaluated the performance characteristics of the Beckman Creatinine Analyzer 2, a kinetic colorimetric analyzer which utilizes a modified Jaffé reagent. The instrument gave linear measurements to at least 300 mg/L and its within-run precision on a 50 mg/l creatinine standard was 1.1%. Its between-day precision on the 50 mg/L creatinine standard was less than 5.0%. Its results correlated well with those from the manual Jaffé. CentrifiChem System 400, TechniconTM SMATM 6/60 System, and TraceTM systems I and III. Interferences from 19 possible serum constituents and 32 drugs were almost nonexistent. The extended linear range of the Creatinine Analyzer 2 allowed the direct assay of samples from patients undergoing periodic hemodialysis.

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