土壤和地下水中氯化苄的顶空-气相色谱法研究  

Determination of Benzyl Chloride in Soil or Ground Water by Headspace Gas Chromatography

作　　者：李娜 刘瑞 吴志鹏 王波 田玲玲[1,2] 蔡嘉莉 LI Na;LIU Rui;WU Zhi-peng;WANG Bo;TIAN Ling-ling;CAI Jia-li(CAS Testing Technical Services(Guangzhou)Co.,Ltd.,Guangzhou 510650,China;Guangzhou Institute of Chemistry,Chinese Academy of Sciences,Guangzhou 510650,China)

机构地区：[1]中科检测技术服务(广州)股份有限公司,广东广州510650 [2]中国科学院广州化学研究所,广东广州510650

出　　处：《精细化工中间体》2022年第6期79-84,共6页Fine Chemical Intermediates

基　　金：广东省科技专项资金项目(200819166270918)。

摘　　要：开发了利用顶空-气相色谱法检测土壤和地下水中氯化苄的新技术。顶空进样后,经DB-WAX型毛细管柱分离,采用氢火焰离子化检测器对氯化苄进行测定,外标法定量。氯化苄在质量浓度0.2~10 mg/L范围内线性关系良好,相关系数为0.998。土壤和地下水中氯化苄的检出限分别为0.3 mg/kg和0.04 mg/L,加标回收率分别为85.6%~90.0%和82.5%~91.5%,相对标准偏差分别为3.2%~5.9%和2.2%~4.8%(n=6)。新技术的检测前处理简便可靠、准确度高、精密度好。A novel technique for the determination of benzyl chloride in soil or ground water by headspace gas chromatography was developed.After headspace injection,the benzyl chloride was separated by a DB-WAX type capillary column,detected by FID,and quantified by external standard method.Signal of benzyl chloride had a good linear relationship in a range of mass concentration 0.2~10 mg/L with a linear correlation coefficient of 0.998.The detection limits of benzyl chloride were 0.3 mg/kg and 0.04 mg/L,respectively;the recovery rates of standard addition were 85.6%~90.0% and 82.5%~91.5%,respectively;and the relative standard deviations were 3.2%~5.9% and 2.2%~4.8%(n=6)for soil and ground water,respectively.The sample-preparation process was simple.The result was accurate and reliable.

关 键 词：顶空-气相色谱法 土壤 地下水 氯化苄 

分 类 号：X8[环境科学与工程—环境工程]