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薄层分离-库仑滴定法测定茄尼醇
Determination of Solanesol by Layer Chromatographic Separation-Coulometric Titration
【摘要】 提出以2mol/L KBr-冰醋酸(1:3 V/V)为电解液,在阳极电生溴与茄尼醇发生反应来测定茄尼醇含量的库仑滴定法.茄尼醇与溴反应,其n值为18.对于烟叶提取物中茄尼醇,以正已烷-二氯乙烷-丙酮为展开剂,用薄层色谱法予以分离,用库仑滴定法进行测定.
【Abstract】 A method for the determination of solanesol by coulometric titration was developed. The titration was carried out in a mixture of 2 mol/L KBr-glacial acetic acid (1:3 V/V), and bromine was generated at the anode. Solanesol reacted with bromine with a value of n as 18. The solanesol in tobacco extracts was separated by thin layer chromatography with a developer of n-hexane-dichloroethane-acetone and then determined by coulometric titration method.
【基金】 河南省科委自然科学基金资助项目;河南省教委自然科学基金资助项目
- 【文献出处】 分析化学 ,Chinese Journal of Analytical Chemistry , 编辑部邮箱 ,1999年01期
- 【分类号】O657.12
- 【被引频次】41
- 【下载频次】244