Digitally enhanced thin layer chromatography: further development and some applications in isotopic chemistry
作者:Daniel P. Manthorpe、William J. S. Lockley
DOI:10.1002/jlcr.3052
日期:2013.9
Improvements to thin layer chromatography (TLC) analysis can be made easily and cheaply by the application of digital colour photography and image analysis. The combined technique, digitally enhanced TLC (DE-TLC), is applicable to the accurate quantification of analytes in mixtures, to reaction monitoring and to other typical uses of TLC. Examples are given of the application of digitally enhanced TLC to: the deuteromethylations of theophylline to [methyl−2H3]caffeine and of umbelliferone to [2H3]7-methoxycoumarin; the selection of tertiary amine bases in deuterodechlorination reactions; stoichiometry optimisation in the borodeuteride reduction of quinizarin (1,4-dihydroxyanthraquinone) and to the assessment of xanthophyll yields in Lepidium sativum seedlings grown in deuterated media.
通过应用数字彩色摄影和图像分析,可以轻松且廉价地改进薄层色谱 (TLC) 分析。数字增强 TLC (DE-TLC) 组合技术适用于混合物中分析物的精确定量、反应监测以及 TLC 的其他典型用途。给出了数字增强薄层色谱应用的例子:茶碱至[甲基-2H3]咖啡因的氘甲基化以及伞形酮至[2H3]7-甲氧基香豆素的氘甲基化;氘代脱氯反应中叔胺碱的选择;醌茜(1,4-二羟基蒽醌)的硼氘化物还原的化学计量优化以及在氘化培养基中生长的独行菜幼苗叶黄素产量的评估。