Martinez Calatayud J, Gomez Benito C, gaspar Gimenez D
Departamento de Quimica Analitica, Universidad de Valencia, Spain.
J Pharm Biomed Anal. 1990;8(8-12):667-70. doi: 10.1016/0731-7085(90)80099-b.
A flow injection-fluorimetric determination of thiamine is reported. The procedure is based on the oxidation of the analyte with potassium hexacyanoferrate(III) immobilized on an anionic exchange resin; the fluorescence is monitored in aqueous basic solution. Concentrations of the vitamin of 0.1-4 ppm have been determined; the relative standard deviation was 1.8%. The injection rate was 28 samples/h. The influence of other substances and the determination of the drug in a pharmaceutical formulation are also reported.
报道了一种流动注射荧光法测定硫胺素的方法。该方法基于固定在阴离子交换树脂上的铁氰化钾（III）对分析物的氧化；在碱性水溶液中监测荧光。已测定维生素浓度为0.1 - 4 ppm；相对标准偏差为1.8%。进样速率为每小时28个样品。还报道了其他物质的影响以及药物制剂中该药物的测定。
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