气相色谱法测定工业废水中N,N-二异丙基乙胺的含量

Determination of N,N-diisopropyl Ethanolamine in the Industrial Waste Water by Gas Chromatography

在碱性条件下以三氯甲烷为萃取剂、间二甲苯为内标物,用毛细管气相色谱法测定工业废水中EDIPA的含量,方法的线性范围0～150g/L,变异系数<3%,检测限为0.05mg/L,加标回收率97.6%～100.1%。该方法具有操作简便、线性范围宽、测定结果准确、分析速度较快的优点,可用于实际分析。

EDIPA in the industrial waste water is determined by capillary gas phase chromatogram with chloroform as the extraction agent, m-xylene as the inner standard in the presence of base, linear arrange of this method is 0~150 g/L, coefficient variance is <3%, detection limit is 0.05 mg/L, the standard recovery is 97.6%~100.1%.This method is simple and convenient in the operation with the advantages of wide linear arrange, correct determination results and swift analysis speed.