引用本文:王海棠,刘浩.SPE-GCMS法分析饮用水源水中痕量半挥发性有机物[J].环境监控与预警,2016,8(4):20-23
WANG Hai tang, LIU Hao.Analysis of Trace Semi volatile Organic Compounds from Drinking Source Water Using SPE–GCMS Technique[J].Environmental Monitoring and Forewarning,2016,8(4):20-23
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SPE-GCMS法分析饮用水源水中痕量半挥发性有机物
王海棠,刘浩
作者单位
王海棠,刘浩 徐州市环境监测中心站江苏 徐州 221006 
摘要:
采用C 18 固相萃取柱富集,乙酸乙酯、二氯甲烷和丙酮混合溶剂以1∶1∶1比例洗脱、自动固相萃取的前处理方法,气相色谱质谱连用,分析水源水中33种半挥发性有机物,并与液液萃取前处理方法进行比较。结果表明:在500~5 000 μg/L范围内,33种SVOC线性良好,相关系数>0.990,回收率为70.1%~114.2%,相对标准偏差为2.4%~13.4%,方法检出限为0.06~0.25 μg/L;而且该方法较液液萃取,检出样品种类多。适用于饮用水源水中半挥发性有机物的监测。
关键词:  固相萃取  GCMS  水源水  半挥发性有机物
DOI:
分类号:X832;O657.63
文献标识码:B
基金项目:
Analysis of Trace Semi volatile Organic Compounds from Drinking Source Water Using SPE–GCMS Technique
WANG Hai tang, LIU Hao
Abstract:
A GCMS method was established for detecting 33 trace semi volatile organic compounds (SVOCs) in drinking source water. Samples were treated with C18 automated solid phase extraction (SPE) and eluted by a mixed solvent of CH<sub>2</sub>Cl<sub>2</sub>, ethyl acetate and acetone. This method was compared with the liquid liquid extraction (LLE) pretreatment method. The results showed that good linearity was obtained in the range of 500~5000 μg/L for 33 SVOC with the correlation coefficient higher than 0.990. The recovery was between 70.1% and 114.2%. The relative standard deviation was between 2.4% and 13.4%. The method detection limit was between 0.06 and 0.25 μg/L. Compared with LLE, this method could detect more kinds of samples. It was suitable for monitoring SVOC in drinking water.
Key words:  SPE  GCMS  Source water  Semi volatile organic compounds