毛细管顶空气相色谱法测定水源水中的氯丁二烯

目的建立水源水中氯丁二烯的毛细管气相色谱检测方法。方法样品在60℃水浴中平衡20 min后,采用抽气顶空进样法,GC-火焰离子化检测器（FID）检测,外标法定量。结果方法检出限为0.53μg/L,加标回收率为91.2%～102.8%,相对标准偏差（RSD）为4.2%～8.5%。线性范围为0.002～0.40 mg/L。结论该法可用于水源水中氯丁二烯的检测。

Determination of Chloroprene in Source Water by Headspace Capillary Gas Chromatography

Objective To establish capillary GC method for the determination of chloroprene in source water.Methods After the sample was equilibrated in a water bath of 60 ℃ for 20 min,the headspace gas was injected into the chromatograph,and the analyte was detected by a FID and quantified by external standard method.Results The limit of detection（LOD） of the method was 0.53μg/L,the spiked recoveries were 91.2%-102.8%,and the relative standard deviation（RSD） were 4.2%-8.5%.The linear range of method was 0.002-0.40 mg/L.Conclusion This method is applicable to determine chloroprene in source water.