| 半挥发性有机污染物的气相色谱纯化方法 |
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| 引用本文： | 汤凤梅,倪余文,张海军,吴立冬,陈吉平.半挥发性有机污染物的气相色谱纯化方法[J].环境化学,2012,31(5):752-756. |
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| 作者姓名： | 汤凤梅 倪余文 张海军 吴立冬 陈吉平 |
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| 作者单位： | 1. 中国科学院大连化学物理研究所,大连116023／中国科学院研究生院,北京100049
2. 中国科学院大连化学物理研究所,大连,116023 |
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| 基金项目： | 国家自然科学基金项目，国家高技术研究发展计划(863)项目，国家水体污染控制与治理科技重大专项 |
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| 摘 要： | 以六氯苯作为模型化合物,建立了半挥发性有机污染物样品净化的气相色谱方法.采用进样阀切换载气吹扫的进样方式,通过保留间隙柱和溶剂放空装置实现大体积进样,经过气相色谱分离后将分析物所在的半挥发性组分选择性冷凝在收集管中.本方法对模型化合物六氯苯的制备回收率为90%,对半挥发性有机污染物样品净化方法的发展具有重要意义.
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| 关 键 词： | 六氯苯 半挥发性有机污染物 气相色谱 纯化 |
Cheanup method of semi-volatile organic contaminants by gas chromatography |
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| TANG Fengmei,NI Yuwen,ZHANG Haijun,WU Lidong,CHEN Jiping.Cheanup method of semi-volatile organic contaminants by gas chromatography[J].Environmental Chemistry,2012,31(5):752-756. |
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| Authors: | TANG Fengmei NI Yuwen ZHANG Haijun WU Lidong CHEN Jiping |
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| Institution: | 1 (1.Dalian Institute of Chemical Physics,Chinese Academy of Science,Dalian,116023,China; 2.Graduate School of Chinese Academy of Science,Beijing,100049,China) |
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| Abstract: | A cleanup method for semi-volatile organic contaminants by gas chromatography using hexachlorobenzene as a model compound was developed.A rotary injection valve was used for large-volume injection.The sample was pushed to the retention gap by carrier gas,and solvent vapours were discharged through SVE.The semi-volatile substances were is the object of the present work,which were separated by a GC column,selectively cut,cool trapped and eluted.The preparation recovery of hexachlorobenzene was 90%.This method is a promising alternative to the complex cleanup procedures for semi-volatile organic contaminants in environmental samples. |
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| Keywords: | hexachlorobenzene semi-volatile organic contaminants gas chromatography cleanup and preparation |
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