High-performance liquid chromatographic determination of 3-hydroxykynurenine with fluorimetric detection; comparison of preovulatory phase and postovulatory phase urinary excretion.
作者： Katsumi Shibata , Michiko Onodera
DOI: 10.1016/0378-4347(91)80196-J
关键词: Chloride 、 High-performance liquid chromatography 、 Fluorescence 、 Detection limit 、 Potassium 、 Urine 、 Chromatography 、 Chemistry 、 Elution 、 Acetonitrile
摘要: A high-performance liquid chromatographic assay for 3-hydroxykynurenine in human urine is described. fluorescent derivative of was prepared, based on the reaction compound with p-toluenesulphonyl chloride a basic medium. The analytical method measurement employed Tosoh ODS 80 column eluted 10 mM potassium dihydrogenphosphate (pH 4.5) and acetonitrile (3:2, v/v) detection at an excitation wavelength 375 nm (10 bandpass) emission 455 bandpass). temperature maintained 25°C. limit 3 pmol (673 pg) signal-to-noise ratio 5:1. ca. 12.5 min. technique applied to analysis urine. total time 15
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