文献类型：期刊文章

作　　者：冯锋[1,2] 王柯敏[1] 杨荣华[1] 周雷激[1] 黄红梅[1] 黄杉生[1] 李杜[1]

机构地区：[1]湖南大学化学化工学院,生物传感与化学计量学国家重点实验室,长沙410082 [2]山西雁北师范学院化学系,大同037000

出　　处：《高等学校化学学报》

基　　金：国家自然科学基金重点项目 (批准号 :2 0 13 5 0 10 );国家杰出青年基金 (批准号 :2 982 5 110 );山西省自然科学基金 (批准号 :2 0 0 110 0 4)资助

年　　份：2003

卷　　号：24

期　　号：12

起止页码：2189-2191

语　　种：中文

收录情况：AJ、BDHX、BDHX2000、CAS、CSCD、CSCD2011_2012、EI、IC、JST、RCCSE、RSC、SCIE、SCOPUS、WOS、ZGKJHX、核心刊

摘　　要：A novel renewable liquid drop sensor was proposed for quantitative assay of thiamine based on it′s oxidation by Hg 2+ in basic medium. The dynamically growing and falling drops formed at the end of a silanized silica capillary tube served as the reactors for a chromogenic reaction and windowless optical cells as well. The optimum analytical conditions have been established. The sensor showed a linear response in the measuring range from 1.0×10 -4 to 5.0×10 -3 mg/mL thiamine, and with a detection limit of 8.0×10 -4 mg/mL. Besides its high sensitivity, the sensor permits a simple, fast, and inexpensive measurement with only micro-quantities reagent consumption.

关 键 词：汞离子 氧化作用  硫胺素 液滴光化学传感器  荧光分析法 药品检测 维生素

分 类 号：R977.2] R927.1[药学类]