For the determination of vitamin B 6 derivatives, a high performance liquid chromatography(HPLC) system composed of a single reversed-phase octadecylsilane column and fluorescence detector with an isocratic elution wa...For the determination of vitamin B 6 derivatives, a high performance liquid chromatography(HPLC) system composed of a single reversed-phase octadecylsilane column and fluorescence detector with an isocratic elution was proposed. This HPLC system perfectly analyzed pyridoxine, pyridoxal, pyridoxamine, pyridoxine 5′-phosphate and pyridoxamine 5′-phosphate together with pyridoxic acid in biological samples. In this method, relatively low fluorescence intensity of pyridoxal 5′-phasphate was improved by converting it to pyridoxic 5′-phosphate with KCN. The analytical procedure is very simple and economical, it is a useful tool for studying vitamin B 6 in animal body.展开更多
文摘For the determination of vitamin B 6 derivatives, a high performance liquid chromatography(HPLC) system composed of a single reversed-phase octadecylsilane column and fluorescence detector with an isocratic elution was proposed. This HPLC system perfectly analyzed pyridoxine, pyridoxal, pyridoxamine, pyridoxine 5′-phosphate and pyridoxamine 5′-phosphate together with pyridoxic acid in biological samples. In this method, relatively low fluorescence intensity of pyridoxal 5′-phasphate was improved by converting it to pyridoxic 5′-phosphate with KCN. The analytical procedure is very simple and economical, it is a useful tool for studying vitamin B 6 in animal body.
