顶空气相色谱法测定化工污水中的丙烯腈

Determination of Acrylonitrile in Wastewater from Petrochemical Plants by Using Gas Chromatog raphic Headspace Analysis

本文对顶空气相色谱分析法测定化工污水中丙烯腈的平衡时间、平衡温度、气—液体积比以及色谱条件进行了研究。方法最低检出限为0.05mg/L,变异系数小于5％,回收率在90～110％之间。

A method for determining acrylonitrile in wastewater from petrochemical plants by using gas chromatographic headspacc analysis is introduced.The equilibrium time、equilibrium temperature、vapor-liquid volumn ratio and chromatographic condition are studied.The minimum measuring limit is 0.05mg/L and the variance is less than 5%.The recovery rate is 90%～ 110%.