气相色谱内标法测定工业废水中三乙胺的含量

Determination of Triethylamine Content in Industrial Wastewater By Gas Chromatography Internal Standard Method

研究工业废水中三乙胺的测定方法,在强碱性的条件下,用三氯甲烷萃取废水中三乙胺与酸、盐等强腐蚀性物质分离,以甲苯作为内标物,在气相色谱中分离检测。结果表明,方法的加入回收率在99.2%～101.8%,变异系数<5%,适应于高盐,强腐蚀性废水中三乙胺的检测。

The determination method of triethylamine content in industrial wastewater was researched in this paper.Triethylamine was fractionation detected by gas chromatography using toluene as the internal standard substance after extracted from wastewater using chloroform to separate from the acid,salt corrosive substance and so on under strong alkaline condition.The results showed that the joining recovery was 99.2% ~ 101.8%,the variable coefficient was less than 5%.The method was suitable for triethylamine content detection in high salt content and high corrosive wastewater.