Abstract

The occurrence of side chemical reactions during regeneration of the highly basic anion exchanger AB-17-2P with adsorbed vanillin with an alkali solution in the presence of atmospheric oxygen was confirmed by the method of gas chromatography/mass spectrometry. A number of the vanillin transformation products were identified. The method of mass spectrometry with matrix-activated laser desorption/ionization demonstrated the presence of the products of vanillin oxidation and polymerization, as well as benzoin condensation in the studied regeneration solution.

中文翻译：

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高碱性阴离子交换剂再生过程中香兰素解吸特性的色谱和质谱研究

摘要

通过气相色谱/质谱法确认了在碱性氧气存在下，碱性气体吸附的香草醛与高碱性阴离子交换剂AB-17-2P再生过程中发生的副化学反应。鉴定了许多香兰素转化产物。带有基质活化激光解吸/电离的质谱方法证明了所研究的再生溶液中存在香兰素氧化和聚合以及苯偶姻缩合的产物。