酸性磷酸酯的气相色谱分析

通过对酸性磷酸酯的季铵盐热裂解，硅烷化，碘甲烷甲酯化和重氮甲烷甲酯化等衍生化方法进行比较，研究碘甲烷甲酯化方法为权性磷到酯最佳衍生化方法，对到性磷酸酯碘甲烷甲酯化方法的气相色谱的定量分析进行了系统的研究，建立了酸性磷酸酯的简便，快速，准确，灵敏度高的气相色谱分析法，单２－乙基己基膦酸单２－乙基己基酯的回收率为９７．０％￣１１１％，最小检出量为０．９２ｎｇ；二（２－乙基己基）磷酸（Ｐ２０４）的回收率

GC Analytical Method for Acidic Phosphate Ester

Derivation methods of quaternary ammonium salt thermolysis,silanization,methyl iodide-esterification and diazomethane-esterication for acidic phosphate ester were compared in this paper.Results indicated that methyl iodide-esterification is the best derived method. GC quantitative analysis of this method was systematically studied and a simple,quick,precise and high sensity GC analytical method was developed.Percent recovery of P507 is 97.0%-111% and its detection limit is 0.92 ng through this method.Percent recovery of P204 is 94.8%-97.8% and its detection limit is 1.33 ng.With the establishing of this method,the studies on the behave of organophosphorus extracting agents especially the acidic phosphates in water environment reach a new level.