摘要
建立了气相色谱-质谱(GC-MS)测定土壤中多环芳烃(PAHs)和酞酸酯类(PAEs)有机污染物的方法。样品经加速溶剂萃取和超声萃取处理后,通过固相萃取或凝胶渗透色谱法进行净化,在选择离子监测模式下进行定量。通过全程序空白、空白加标回收、清洁土壤基质加标回收及有证标准参考物质比对等方式,对所建立的方法进行严格的质量控制和保证。16种PAHs和7种PAEs的方法检出限分别为0.13～2.2μg/kg和0.19～0.52μg/kg,平均加标回收率分别为41.5%～116.9%和90.7%～107.1%。本研究所建立的土壤中PAHs和PAEs的GC-MS快速分析方法及其质量控制措施可以为全国性土壤污染状况调查数据的科学性和准确性提供技术保障。
A method for the determination of polycyclic aromatic hydrocarbons （PAHs） and phthalate esters （PAEs） in soil samples by gas chromatography-mass spectrometry （GC-MS） was developed. After extracted by accelerated solvent extraction or ultrasonic extraction by dichloromethane-hexane （1∶1,v/v） and dichloromethane-acetone （1∶1,v/v）,respectively,the extracts were cleaned up by solid phase extraction and/or gel permeation chromatography. Quality control and quality assurance procedures were carried out with the methods of whole procedure blank,blank spike recovery,clean soil matrix spike recovry,and the comparison with reference materials. The method detection limits were 0.13-2.2 μg/kg and 0.19-0.52 μg/kg and the average recoveries were 41.5%-116.9%和90.7%-107.1% for the PAHs and the PAEs,respectively. The results showed that the method can meet the technical requirements on the soil sample test and analysis in the national survey of soil pollution.
出处
《色谱》
CAS
CSCD
北大核心
2010年第5期465-469,共5页
Chinese Journal of Chromatography
基金
国家重点基础研究发展计划("973"计划)项目(2009CB421602)
关键词
气相色谱-质谱法
多环芳烃
酞酸酯类化合物
质量控制
质量保证
土壤
gas chromatography-mass spectrometry （GC-MS）
polycyclic aromatic hydrocarbons
phthalate esters
quality control
quality assurance
soil
