水中微量甲基膦酸类化合物的树脂富集与 GC/MS分析  

ANALYSIS OF METHYLPHOSPHONIC ACIDS IN WATER BY ANION EXCHANGE RESIN ENRICHMENT AND GAS CHROMATOGRAPHY-MASS SPECTROMETRY

作　　者：周黎明[1] 顾惠芬[1] 曲刚莲[1] 钟玉征[1] 

机构地区：[1]防化指挥工程学院第八教研室,北京102205

出　　处：《环境化学》1998年第2期186-190,共5页Environmental Chemistry

摘　　要：本文使用三种阴离子交换树脂（即大孔弱碱型D-301-R、强碱型D-296,201X7）柱对水中微量甲基膦酸类化合物的富集方法进行了研究,含磷毒剂降解产物的水样用气相色谱/质谱法进行定性定量分析,结果表明,D-301-R阴离子交换树脂柱对甲基膦酸的富集回收率高于60％。Three anion ion-exchange resins(i. e. D-301-R weak basic,D-296 and 201X7 strong basic respectively) were used for the enrichment of methylphosphonic acids in water. Their degradation products were retained on the resins and eluted with saturated anhydrous HCl/methanol solution, then the eluted solution was methylated with dia-zomethane. Finally, the methylating compounds were identified and quantified by gas chromatography-mass spectrometry (EI mode). It was found that the recovery of methylphosphonic acid in water was over 60% when the macroporous weak alkali anion exchange resin D-301-R was applied in the study. .

关 键 词：甲基膦酸 树脂富集 水样 水质监测 GC MS 

分 类 号：X832.02[环境科学与工程—环境工程]