The adaptation of an isocratic reversed-phase ion-pairing high performance liquid chromatographic method in combination with derivatization of dehydroascorbic acid by l&phenylenediamine prior to injection for simultaneous determination of ascorbic acid and dehydroascorbic acid in plant materials is
Simultaneous determination of creatine, uric ccid, creatinine and hippuric acid in urine by high performance liquid chromatography
β Scribed by Yang Yue-dong
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 49 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0269-3879
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β¦ Synopsis
A simple method for the simultaneous determination of creatine, uric acid, creatinine and hippuric acid in urine using reversed-phase high performance liquid chromatography was described. Chromatography was performed on a Nova-Pak C 18 (3.9Ψ 150 mm) column with a mobile phase of 0.02 mol/L KH 2 PO 4 , and UV detection at 220 nm. The recoveries of creatine, uric acid, creatinine and hippuric acid were 103.13, 99.86, 98.26 and 98.24%, respectively. The calibration curves were linear within the concentration range of 2-200 g/mL for creatine, uric acid and hippuric acid, and 2-400 g/mL for creatinine. The detection limits of the method were 0.69, 0.21, 0.10 and 0.095 g/mL for creatine, uric acid, creatinine and hippuric acid, respectively. This method has been applied to the analysis of urine samples from normal subjects and some patients.
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