HPLC Method for the Assay of Creatinine in Urine

Autor: D. H. Catlin, B. Starcevic
Rok vydání: 1991
Předmět:
Zdroj: Journal of Liquid Chromatography. 14:2399-2408
ISSN: 0148-3919
DOI: 10.1080/01483919108049699
Popis: A simple and rapid HPLC method has been developed for the determination of creatinine in urine. Urine was diluted (1:50 v/v) with water and injected directly. The chromatographic separation was accomplished with butylamine-phosphoric acid buffer at a flow rate of 1.2 ml/min. The HPLC column was a cartridge packed with 3 μm Econosphere C18. The UV detection wavelength was 230 nm. The intra and inter assay coefficient of variation were less than 5.2%. The method was validated by comparing data on 232 urines with that obtained by the Jaffe method. It is suitable for routine determination of creatinine in urine as a measure of excretion rate, and is presently being used to improve the quality of the data from drug testing programs.
Databáze: OpenAIRE