| Assay of some volatile compounds in human exhalation |
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| 作者姓名： | Qin Tao Xu Xiao bai Pacakova Ver Stulik Karel |
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| 作者单位： | Qin Tao，Xu Xiao bai * Research Center for Eco Environmental Sciences，Chinese Academy of Sciences，Beijing 100085，China Pacakova Vera，Stulik Karel Chales University，Albertov 2030 128 40，Prague 2，Czechoslovakia |
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| 摘 要： | ＡｓａｙｏｆｓｏｍｅｖｏｌａｔｉｌｅｃｏｍｐｏｕｎｄｓｉｎｈｕｍａｎｅｘｈａｌａｔｉｏｎＱｉｎＴａｏ，ＸｕＸｉａｏｂａｉＲｅｓｅａｒｃｈＣｅｎｔｅｒｆｏｒＥｃｏＥｎｖｉｒｏｎｍｅｎｔａｌＳｃｉｅｎｃｅｓ，ＣｈｉｎｅｓｅＡｃａｄｅｍｙｏｆＳｃｉｅ...
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| 关 键 词： | trapping column low molecular weight compounds human exhalation. |
| 收稿时间： | 1996/11/19 0:00:00 |
| 修稿时间： | 1997/7/15 0:00:00 |
Assay of some volatile compounds in human exhalation |
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| Qin Tao,Xu Xiao bai,Pacakova Ver,Stulik Karel.Assay of some volatile compounds in human exhalation[J].Journal of Environmental Sciences,1998,10(1):37-42. |
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| Authors: | Qin Tao Xu Xiao bai Research Center for Eco Environmental Sciences Chinese Academy of Sciences Beijing China Pacakova Vera Stulik Karel Chales University Albertov Prague Czechoslovakia |
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| Institution: | Qin Tao,Xu Xiao bai * Research Center for Eco Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China Pacakova Vera,Stulik Karel Chales University,Albertov 2030 128 40,Prague 2,Czechoslovakia |
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| Abstract: | The assay of trace volatile low molecular weight(MW) compounds in human breath or in ambient atmosphere typically involves gas chromatography with flame ionization detection (FID). This paper introduced a direct assay which can overcome the difficulties of collection low concentration samples. In order to pre concentrate the trace low MW compounds, a small trapping column filled with absorbent must be used before thermal desorption of the collected samples onto chromatographic column(packed with Porapak Q) for separation. It has been proved that the characteristic of absorbent mainly influence the recoveries and the linear range of this method is from 0 05 ng to 5200 ng for pentane, methanol, ethanol and acetone. |
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| Keywords: | trapping column low molecular weight compounds human exhalation |
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