| 大气有机污染物的吸附剂富集—超临界流体萃取—色质联用分析 |
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| 引用本文： | 高连存,张春阳.大气有机污染物的吸附剂富集—超临界流体萃取—色质联用分析[J].环境化学,1997,16(3):284-289. |
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| 作者姓名： | 高连存 张春阳 |
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| 作者单位： | 山东大学环境工程系 济南250100 |
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| 摘 要： | 本文研究了有机吸附剂ＧＤＸ－１０１１，ＧＤＸ－１０２，ＧＤＸ－５０２富集大气中痕量有机污染物的超临界流全萃取方法，比较了三种吸附剂富集大气中有机物的主要成分其超临界流体的萃取效率，并与索钉抽提法做了对比，结果表明，ＧＤＸ－５０２吸附有机物组分最多，超临界流体萃取对ＧＤＸ－５０２的解吸效率也最高，对被ＧＤＸ－５０２吸附的可以定量分析的３５种有机物的平均回收率为８４．５－１０８．９％，相对标准偏差为１
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| 关 键 词： | 大气 有机污染物 吸附剂 富集 GC－MS分析 |
THE ANALYSIS OF THE ORGANIC POLLUTANTS FROM THE AIR BY USING ORGANIC ADSORBENTS ENRICHING-SFE DESORPTION AND OFF-LINE GC-MS DETECTION |
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| Gao Liancun,Zhang Chunyang,Cut Zhaojie Wang Shuren.THE ANALYSIS OF THE ORGANIC POLLUTANTS FROM THE AIR BY USING ORGANIC ADSORBENTS ENRICHING-SFE DESORPTION AND OFF-LINE GC-MS DETECTION[J].Environmental Chemistry,1997,16(3):284-289. |
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| Authors: | Gao Liancun Zhang Chunyang Cut Zhaojie Wang Shuren |
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| Abstract: | The analytical methods of the supercritical fluid extraction (SFE) desorping the organic pollutants absorbed and enriched by the organic adsorbents including GDX-101, GDX-102, GDX-502 from the air are studied in this paper. The organic components absorbed by GDX-101, GDX-102, GDX-502 and the efficiency of SFE of three samples are compared the recoveries of SFE are compared with Soxhlet extraction. The results indicate that the organic components absorbed by GDX-502 are more than those absorbed by the others. The efficiency of SFE of the organics absorbed by GDX 502 is superior to the others. The extraction efficiencies of SFE of 35 kinds of organics absorbed by GDX-502 are studied carefully, the mean recovery was in the range of 84. 5-108. 9%. The relative standard deviation is in the range of 1. 5-12. 0%. |
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| Keywords: | air organic pollutants organic adsorbents enriching supercritical fluid extraction GC-MS analysis |
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