摘要
建立了加速溶剂萃取-气相色谱质谱分析土壤中氯化苄和苯甲醇的方法。结果表明,优化的实验条件为:以二氯甲烷和丙酮混合溶液(V/V=2∶1)为萃取剂,提取温度为100℃,循环提取2次,氮吹浓缩至5mL。氯化苄和苯甲醇在0.2~20mg/L范围内与色谱峰面积呈良好的线性关系,相关系数均大于0.995,方法检出限分别为0.02 mg/kg和0.04 mg/kg,3个加标水平样品的平均回收率范围为76.3%~97.6%,相对标准偏差为2.5%~15%。该方法适用于土壤中氯化苄和苯甲醇的测定。
A method for analyzing benzyl chloride and benzyl alcohol in soil by accelerated solvent extraction coupled with gas chromatography-mass spectrometry was established.The results showed that the optimum extraction conditions were as follows:the volume ratio of dichloromethane and acetone of 2:1 in the mixed solution as extractant,the extraction temperature of 100℃,and the extraction process repeated of twice.Benzyl chloride and benzyl alcohol have good linear relationships in the range of 0.2 to 20 mg/L,with correlation coefficients greater than 0.995.The method detection limits were 0.02 mg/kg and 0.04 mg/kg for benzyl chloride and benzyl alcohol,respectively.The average recoveries of three spiked levels ranged from 76.3%to 97.6%,and the relative standard deviations were 2.5%to 15%.This method is suitable for the determination of benzyl chloride and benzyl alcohol in soil.
作者
周宇齐
方绍敏
宋洲
吉义平
罗火焰
钟旭
ZHOU Yuqi;FANG Shaomin;SONG Zhou;JI Yiping;LUO Huoyan;ZHONG Xu(Hubei Province Geological Experimental Testing Center,Wuhan 430034,China;Hubei Huaxiang Geological Environment Testing Technology Co.,Ltd.,Wuhan 430000,China;Hubei Key Laboratory of Resources and Eco-environment Geology(Hubei Geological Bureau),Wuhan 430034,China)
出处
《分析试验室》
北大核心
2025年第2期205-210,共6页
Chinese Journal of Analysis Laboratory
基金
湖北省地质局科研项目(KJ2021-18,KJ2022-36,KJ2023-39)资助。
关键词
气相色谱质谱法
加速溶剂萃取
氯化苄
苯甲醇
土壤
gas chromatography-mass spectrometry
accelerated solvent extraction
benzyl chloride
benzyl alcohol
soil
