微波萃取-气质联用测定土壤中的16种多环芳烃

李海燕; 李楠; 于丹丹

引用本文:	李海燕,李楠,于丹丹.微波萃取-气质联用测定土壤中的16种多环芳烃[J].环境监控与预警,2010,2(1):20-23
	LI Hai-yan ,LI Nan,YU Dan-dan.Microwave- assisted Extraction： GC- MS Determination of 16 Polycyclic Aromatic Hydrocarbons in Soils[J].Environmental Monitoring and Forewarning,2010,2(1):20-23

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微波萃取-气质联用测定土壤中的16种多环芳烃
李海燕,李楠¹, 于丹丹²
1.连云港市环境监测中心站,江苏连云港 222001;2.灌南县环境监测站,江苏灌南 223500

摘要:

用丙酮-正己烷（1:1体积比）混合溶剂，通过微波萃取法提取土壤中的16种多环芳烃组分。萃取溶液经硅胶小柱净化，最后用气相色谱-质谱法分析。以石英砂为基体进行加标回收测定。16种多环芳烃的检测限为0.18～0.53μg／kg，经精密度试验，相对标准偏差均〈5％，回收率在75.5％～108％之间。

关键词: 微波萃取气相色谱-质谱法多环芳烃土壤

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Microwave- assisted Extraction： GC- MS Determination of 16 Polycyclic Aromatic Hydrocarbons in Soils

LI Hai-yan ,LI Nan¹, YU Dan-dan²

1.Lianyungang Environmental Monitoring Central Station, Lianyungang, Jiangsu 222001, China;2.Guannan Environmental Monitoring Station, Guannan, Jiangsu 225000, China

Abstract:

Microwave was used to extract 16 polycyclic aromatic hydrocarbons in soils with acetone： n -hexane （1：1） mixed solvent. After the purification process by a silica gel column the solution was passed to the gas chromatography - mass spectrometry for analysis. Standard addition recovery rate was determined with quartz sand as substrate. The testing was performed over 16 polycyclic aromatic hydrocarbons with the detection limit ranging between 0.18 ug/kg to 0.53 ug/kg,while in precision testing the relative standard deviations was below 5% with recovery rate staying between 75.5% and 108%.

Key words: microwave extraction GC - MS spectrometry polycyclic aromatic hydrocarbons soil