| 吹扫捕集-气相色谱法测定空气中的甲醛含量 |
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| 引用本文： | 尹艳凤,王安群,李倦生,陈小明.吹扫捕集-气相色谱法测定空气中的甲醛含量[J].湖南工程学院学报(自然科学版),2012(3):72-74,87. |
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| 作者姓名： | 尹艳凤 王安群 李倦生 陈小明 |
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| 作者单位： | 长沙环境保护职业技术学院;湘潭大学 |
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| 摘 要： | 以蒸馏水作为吸收介质吸收空气中的甲醛,在常温下进行吹扫捕集,并用气相色谱法进行测定.同时对甲醛的稳定剂甲醇的用量、吹扫捕集的吹扫气流速和吹扫时间进行了优化,并在优化的实验条件下,测定了某新装修房间的甲醛含量.该方法对甲醛的检出浓度可达到0.04mg/m3,且除了使用极微量的甲醇以外,几乎没用到有机溶剂,因此该方法具有检出限低、灵敏、快速、环保等特点.
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| 关 键 词： | 甲醛 吹扫捕集 气相色谱 检出限 |
The Determination of Formaldehyde in Air by Purge and Trap-gas Chromatography |
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| YIN Yan-feng,WANG An-qun,LI Juan-sheng,CHEN Xiao-ming.The Determination of Formaldehyde in Air by Purge and Trap-gas Chromatography[J].Journal of Hunan Institute of Engineering(Natural Science Edition),2012(3):72-74,87. |
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| Authors: | YIN Yan-feng WANG An-qun LI Juan-sheng CHEN Xiao-ming |
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| Institution: | 1.Changsha Environment Protection Technology College,Changsha 410004,China; 2.Xiangtan University,Xiangtan 411103,China) |
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| Abstract: | Formaldehyde in air is collected by distilled water and determined by purge and trap-gas chromatography.At the same time,the dosage of methanol and the condition of purge and trap such as rate and time are optimized.Under the optimum conditions,the concentration of formaldehyde in a newly-decorated room is determined.A lower concentration of formaldehyde than 0.04mg/m3 can be detected and by using a trace of methanol.So the remarkable characteristics of this method are sensitive,quick,environment-protected and lower in limit of detect. |
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| Keywords: | formaldehyde purge and trap gas chromatography limit of detect |
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