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文章摘要
热脱附-气相色谱法测定环境空气中芳烃和卤代烃
To Determine Aromatic Hydrocarbon and Halogenated Hydrocarbon in Ambient Air with Heat Desorption - GC
  
DOI:
中文关键词: 热脱附 - 气相色谱法  芳烃  卤代烃  环境空气  石油化工
英文关键词: Heat desorption - GC  Aromatic hydrocarbon  Halogenated hydrocarbon  Ambientair  Petrochemistryindustry
基金项目:
作者单位
李英堂 齐鲁石化公司环境监测站 
李 伟 齐鲁石化公司环境监测站 
赖荣晖 齐鲁石化公司环境监测站 
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中文摘要:
      建立了热脱附-气相色谱法测定环境空气中9种芳烃和卤代烃方法。阐述了样品管制备、采样袋预处理、现场采样和实验富集等过程。采用保留时间定性、外标法定量。进行了自动热脱附仪的吸附和解吸效率的试验, 各组分的吸附效率均在97 % 以上, 解吸效率达98 1 9 % 。最低检出质量浓度氯乙烯为0.0003 mg/ m 3 、1,2- 二氯乙烷和1,2- 二氯丙烷为0.000 2 mg/ m 3 、苯、甲苯、乙苯、对二甲苯、苯乙烯和邻二甲苯均为0.0001 mg/ m 3 。试图以不更换Tenax TA吸附剂标准冷阱
英文摘要:
      Methodto determine nine kindsofaromatic hydrocarbon and halogenated hydrocarbonin ambientair with heatdesorption- GC wasstudied. The procedure aboutsample vitro making,sample bag pre-treat,sampling and enrichmentin-site wasdiscussed. To detect withretentiontime methodforqualitativeanalysis,and withexternal standard methodforquantitativeanalysis. Experiment wasundertakentotesttheeffectofabsorption and de-absorption ofautomatic heatdesorption. Allelements ’ absorptioneffect was morethan 97 % ,theaverage de 2 absorptioneffect was 98.9 %. Thelowestdetection massconcentration wasthat:chloroethane was0.0003 mg/ m 3 ,1,2- dichloroethaneand 1,2-dichloropropane were 0.000 2 mg/ m 3 , benzene, methyl benzene,p- dimethylbenzene, vinylbenzene and odimethylbenzene were all0.0001 mg/ m 3 . Tryto detectthecharacteristicpollutantofethylenein ambientair,withoutchanging Tenax TA absorbentstandardcooltrap,butthetestresult wasnotgood becauseoftheabsorptionofethylene.
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