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近年发展起来的萃取色层对研究纸层析与液液萃取间的关系是较有成效的,我们的研究工作表明萃取剂结构的极性效应和空间位阻在反相纸层析与溶剂萃取过程中对金属络合反应的影响是相似的,因此应用反相纸层析技术作为萃取过程的模拟是可行的,它具有操作方法简便,快速及节省试剂等优点。本文选用类型相同,分子量差别不大的八种烃基膦酸单辛酯:苯基膦酸单正辛基酯(Ⅰa),苯基膦酸单异辛基酯(Ⅰb),苯基膦酸单仲辛基酯(Ⅰc),邻甲苯基膦酸单正辛基酯(Ⅱa),邻甲
In recent years, the development of the extraction of chromatography on the paper chromatography and liquid-liquid extraction of the relationship between the more effective, our research work shows that the polarity of the extractant structure and steric hindrance in reverse phase paper chromatography and solvent extraction The influence of metal complexation reaction is similar during the process. Therefore, it is feasible to use the reverse phase paper chromatography as the simulation of extraction process, which has the advantages of simple, rapid and reagent-saving operation. In this paper, eight kinds of mono-octyl hydrocarbylphosphites with the same type and the same molecular weight difference were used: mono-n-octyl phenylphosphonate (Ⅰa), monoisooctyl phenylphosphonate (Ⅰb), phenylphosphonic acid mono Sec-octyl ester (Ic), mono-n-octyl tolylphosphonate (IIa)