热脱附气相色谱法测定大气中氯苯类化合物  

Determination of Chlorobenzenes in Air by Thermal Desorption-Gas Chromatography

作　　者：周守毅[1] 李冰清[1] 刘芳[1] 

机构地区：[1]上海市环境监测中心,上海200030

出　　处：《环境保护科学》2014年第2期107-109,共3页Environmental Protection Science

摘　　要：使用热脱附解析气相色谱法测定7种氯苯类化合物.研究表明该方法在0.005～1.0 rmg/m3浓度范围内具有良好的线性关系,相关系数大于0.999,氯苯化合物回收率为95.2％～107％,相对标准偏差为2.6％～3.3％,检出限为0.005 mg/m3均能较好地满足实验室分析要求,且样品在热脱附管内保存期可达7d.Seven chlorobenzenes were determined by gas chromatography with secondary thermal desorption. The calibration curve of Chlorobenzenes at concentration range of 0.005mg/m3-1.0 mg/m3 was linear by proposed method, and the correlation coefficient was over 0.999. The recovery rate of Chlorobenzenes was in the range of 95.2%-107%, and the relative standard derivation was in the range of 2.6%-3.3%. The MDL of Chlorobenzenes was 0.005 mg/m3. The sample in tub could be preserved well in 7 days. The method in the article can meet the requirements of analysis.

关 键 词：热脱附 氯苯类化合物 气相色谱 

分 类 号：X831[环境科学与工程—环境工程]