填充柱气相色谱法测定废水中的乙酸根

The Packed Column GC Method for Determination of Acelate in Wastewater

废水经蒸馏预处理，采用５％ＰＥＧ２０Ｍ＋０５％Ｈ３ＰＯ４ＣｈｒｏｍｏｓｏｒｂＨＰ８０～１００目，２ｍ×２ｍｍ玻璃填充柱，直接进预处理水样气相色谱法测定废水中的乙酸根，方法操作快速、简便，变异系数为４％和１０％，加标回收率８３％～１０５％。

Acetate in wastewater was detected by gas chromatography with packed column of 5% PEG 20M and 05% H3PO4 on chromosorb HP 80100 mesh packings and direct injection of wastewater treated by distillation.This method is rapid and simple.The variable coefficient is between 4% and 10%,recovery of added standed is between 83% and 105%,detecting limit is 2mg/L.