气相色谱法快速测定水中硝基苯类化合物研究

摘要

This study determines nitrobenzenes of special organic matter in water with liquid -liquid extraction pre-process-ing technology, separate with capillary column chromatography and FID detector to determine .In this method, ten nitrobenzenes were separated perfectly and determined within 15 min.Recovery was 83.1%~106.2%;The method is simple, qui.It was used to determine the nitrobenzene compounds in water samples from river .The results showed that the area is not seriously polluted by nitrobenzene compounds.%采用液液萃取前处理技术，利用二氯甲烷作为萃取剂，用FID检测器进行测定。该方法中，10种硝基苯类化合物在15 min内能够很好地分离，加标回收率为83．1％～106．2％。该方法简单、快捷、通用，且所用有机试剂毒性相对较低，具有较好的推广性与实用性。应用该方法对湘江和东江湖水中的硝基苯类化合物含量进行调查，表明该河流与湖库水质未受到硝基苯类化合物的污染。