水中氯苯的气相色谱分析方法  

Analysis Method of Chlorobenzene in Water by Gas Chromatography

作　　者：井文杰[1] 张敏利[2] 翁薇[1] 王洋[1] 刘丹[1] 

机构地区：[1]黎明化工研究院,河南洛阳471000 [2]河南师范大学化学与环境科学学院,河南新乡453700

出　　处：《化学推进剂与高分子材料》2011年第2期97-100,共4页Chemical Propellants & Polymeric Materials

摘　　要：建立了改进液液萃取-气相色谱法快速分析水样中氯苯的前处理方法。通过对萃取过程各影响因素的优化,得到最佳萃取条件为：萃取剂为正己烷,萃取剂用量为1.5 mL,萃取时间4 m i n,离心时间4 m i n。当氯苯溶液的浓度范围为1-4 0 m g/L时,相应的加标回收率范围为88.0%-95.5%,相对标准偏差为3.5%-5.2%。The pretreatment method for rapid analysis of chlorobenzene in water samples by improved liquid-liquid extraction-gas chromatography was established.Through optimizing the influencing factors in the extraction process,the optimal extraction conditions were obtained as follows： the extractant is n-hexane,and its dosage is 1.5mL,the extraction time and centrifugal time are all 4min.When the chlorobenzene concentration is 1~40mg/L,the corresponding spiked recovery is 88.0%~ 95.5%,the relative standard deviation is 3.5%~5.2%.

关 键 词：氯苯 改进液液萃取 气相色谱 

分 类 号：X832[环境科学与工程—环境工程] O657.71[理学—分析化学]