Gas Chromatographic Determination of Benzene Homologues in Water with Head-Space Single-Drop Microextraction
摘 要
采用顶空单液滴微萃取样品处理方法分离富集水中苯系物,用气相色谱法进行测定.考察了不同萃取剂、萃取条件对检测结果的影响.苯、甲苯、对二甲苯的检出限分别为0.05,0.05,0.03 μg·L-1,三种苯同系物的相关系数分别为0.999 2,0.998 5和0.997 2,回收率分别为98.3%,101.9%和97.3%.
Abstract
Benzene homologues in water were separated and enriched by head-space single-drop microextraction and determined by gas chromatography.Effects of different kinds of extraction solvents and extraction condition on the testing results were studied thoroughly.Detection limits (S/N=3) of the method were found to be 0.05 μg·L-1 for benzene and toluene,and 0.03 μg·L-1 for p-xylene.Linear relationships between peak area and concentration of the homologues within 10 μg·L-1 were obtained for all the 3 compounds.Correlation coefficients of 0.999 2,0.998 5 and 0.997 2 were found for the 3 compounds respectively.Recovery was tested by adding 2 μg·L-1 of the standard solutions to a sample of waste water,results obtained were 98.3% for benzene,101.9% for toluene and 97.3% for p-xylene.
中图分类号 O657.37
所属栏目 工作简报
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收稿日期 2006/11/2
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备注韩康(1982-),女,河北邯郸人,硕士研究生,主要从事色谱分析方面的研究.
引用该论文: HAN Kang,ZHOU Jian-ke,ZHANG Qian-li,ZHANG Li. Gas Chromatographic Determination of Benzene Homologues in Water with Head-Space Single-Drop Microextraction[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2008, 44(2): 154~156
韩康,周建科,张前莉,张立. 顶空单液滴微萃取-气相色谱法测定水中苯系物[J]. 理化检验-化学分册, 2008, 44(2): 154~156
被引情况:
【1】张爱平,王红卫,翁利丰,侯晋,方禹之, "分散液液微萃取-气相色谱-质谱法测定长江水体中18种苯系物",理化检验-化学分册 50, 1104-1108(2014)
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参考文献
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【2】Michael A Jeannot,Frederick F Cantwell.Mass transfer characteristics of solvent extraction into a single drop at the tip of a syringe needle[J].Anal Chem,1997,69:235-239.
【3】Vanessa Colombini,Chrystelle Bancon-Montigny,Lu Yang,et al.Headspace single-drop microextraction for the detection of organotin compounds[J].Talanta,2004,63:555-560.
【4】Zhao Ru-song,Lao Wen-jian,Xu Xiao-bai.Headspace liquid-phase microextraction of trihalomethanes in drinking water and their gas chromatographic determination[J].Talanta,2004,62:751-756.
【5】赵汝松,徐晓白,刘秀芬.液相微萃取技术的研究进展[J].分析化学,2004,32(9):1246-1251.
【6】Aaron L Theis,Adam J Waldack,Susan M Hansen,et al.Headspace Solvent Microextraction[J].Anal Chem,2001,73:5651-5654.
【7】Gang Shen,Hian Kee Lee.Hollow fiber-protected liquid-phase microextraction of Triazine herbicides[J].Anal Chem,2002,74:648-654.
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