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| 热解吸/GC/MS联用测定石化工业区大气环境中挥发性有机物 |
| Determ ination of Volatile Organic Compound in the Air of Petrochem ical Industry Zone by ThermalDesorption/Gas Chromatography/MassSpectrometry |
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| DOI： |
| 中文关键词: 挥发性有机物 热解吸 GC/MS 法 石化工业区 大气环境 |
| 英文关键词: Volatile organic compounds Thermaladsorption Gas chromatography/mass spectrometry Petrochemicalindustry zone Atmosphere environment |
| 基金项目: |
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| 中文摘要: |
| 采用二次热解吸/气相色谱/ 质谱联用测定石化工业区大气环境中挥发性有机物, 质谱检测器同时进行全扫描和选择离子扫描, 全扫描定性, 选择离子扫描和内标法定量。方法线性良好 ,50 种目标化合物的检出限为 0.14 ng ～ 2.45 ng, 在3个浓度水平的加标回收试验中,1,1- 二氯乙烯和二氯甲烷回收率较低 , 氯仿和苯低浓度回收率较差 , 其余46种目标化合物的回收率为 83.4% ～ 116% ,RSD 为 0.5% ～ 8.9% 。 |
| 英文摘要: |
| The volatile organic compoundsin the airofpetrochemicalindustry zone were determinated by two- stagethermaladsorption /gaschromatography/ massspectrometry. Thefull- scan wasperformed forqualita tive analysisofand selectedion monitoring (SIM) and internalstandard were applied forquantitative analysis. The goodlinearityofthe method wasachieved. The detectionlimitsof50targetcompoundswerefrom 0.14 ngto 2.45 ng. Itwasfoundthelow recoveriesof1,1 2 dichloroethene and dichloromethane atthreeconcentrationlevels tests,the bad recoveriesofchloroform and benzene atlowerconcentration leveltest,the recoveriesofother46 targetcompoundsin the range from 83.4% to116% , and the RSD softhe compoundsfrom 0.5% to 8.9%. |
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