期刊文献+

加速溶剂提取-气相色谱法测定蔬菜中的有机氯农药 被引量:23

Determining organochlorine pesticides in vegetables by using accelerated solvent extraction and gas chromatography method
下载PDF
导出
摘要 加速溶剂提取技术萃取蔬菜样品中的有机氯农药残留具有萃取速度快、溶剂用量少、选择性高等优点。用加速溶剂提取-气相色谱法测定蔬菜中的有机氯农药残留,其结果与国标法(GB/T5009,19-1996)和美国EPA法(3545)进行比较。结果表明:加速溶剂提取-气相色谱法能够对蔬菜中多种有机氯农药残留的提取和测定达到很好的效果,蔬菜中12种有机氯农药在两种质量分数(25和100ng·g-1)的添加的回收率在80%和125%之间,高于国标法,而与美国EPA的方法相当。用此法对南京市郊蔬菜中有机氯农药残留状况进行分析表明:南京市郊蔬菜中有机氯农药的检出率在76%和100%之间,DDTs是蔬菜中的主要有机氯农药残留,其次为六六六,分别占残留总量的48.5%~74.6%和14.0%~27.9%。10种试验蔬菜体内DDT和六六六的残留量均不超标,但此类物质可在食物链中富集和放大,仍会对农产品质量和人体健康构成潜在威胁。 Accelerated solvent extraction is few solvents consumption, rapid extraction and highly selective for extracting organic pollutants from solid materials, it is widely used in vegetable pesticide residue analysis. In this study, organochlorine pesticides in vegetables were extracted by accelerated solvent extractor and quantified by using gas chromatography equipped with a ^63Ni electron-capture detector (ECD) system. Recoveries of 12 representative organochlorine pesticides(p,p′-DDT, p,p′-DDE, p,p^-DDD, o3p′-DDT, o3p,-DDE, α-HCH,β-HCH, ),-HCH, 6-HCH, hexachlorobenzene (HCB), chlordane and heptachlor) spiked in carrot and spinach in different concentrations (25 and 100 ng-g^-1 ) were between 80% and 125%, and the relative standard deviation between 3% and 15%, which indicative of the new method was suitable for multiresidues analysis. As far as the recoveries, compared with national standard method and environmental protection agency method of America, the new method was higher than the former and similar to the latter. Residual levels of organochlorine pesticides in vegetables from vegetable base of Nanjing were also analyzed. Twelve representative organochlorine pesticides detectable occurrence were between 76% and 100%. DDT and HCH are the main residues in vegetables, account for 48.5% to 74.6%and 14.0% to 27.9% of all organochlorine pesticides residues detected, respectively Though the average levels were generally lower than maximum residue limit of national standard, it still be potentially dangerous to food quality and human health.
出处 《生态环境》 CSCD 北大核心 2007年第1期50-53,共4页 Ecology and Environmnet
基金 国家杰出青年基金项目(40325001) 安徽高校省级自然科学研究项目(2006KJ175B) 安徽高校青年教师科学研究项目(2006jq11119)
关键词 加速溶剂提取 气相色谱 有机氯农药 蔬菜残留 定量分析 accelerated solvent extractor gas chromatography organochlorine pesticides vegetable residues quantificational analysis
  • 相关文献

参考文献9

  • 1GAO H J,JIANG X,WANG F,et al.Residual Levels and Bioaccumulation of Chlorinated Persistent Organic Pollutants (POPs) in vegetables from suburb of Nnanjing,China[J].Bulletin of Environmental Contamination and Toxicology,2005,74 (4):673-680.
  • 2牟世芬,刘克纳,阎炎,侯小平,宋强,沈冬青.加速溶剂萃取技术及其在环境分析中的应用[J].环境化学,1997,16(4):387-391. 被引量:32
  • 3RICHTER B E.Extraction of hydrocarbon contamination from soils using accelerated solvent extraction[J].Journal of Chromatography A,2000,874:217-224.
  • 4SATIO K,SJODIN A,SANDAU C D,et al.Development of a accelerated solvent extraction and gel permeation chromatography analytical method for measuring persistent organohalogen compounds in adipose and organ tissue analysis[J].Chemosphere,2004,57:373-381.
  • 5TAO S,GUO L Q,WANG X J,et al.Use of sequential ASE extraction to evaluate the bioavailability of DDT and its metabolites to wheat roots in soils with various organic carbon contents[J].The Science of the Total Environment,2004,320:1-9.
  • 6Environmental Protection Agency (EPA) test methods for evaluating solid waste,method 3545,US EPA-SW846[S].Washington D C,December,1996.
  • 7GB/T5009,19-1996,食品中六六六(BHC)和滴滴涕(DDT)残留量的测定方法国家标准[S]//全国农药残留试验研究协作组.农药残留量实用检测方法手册:第2卷.北京:化学工业出版社,2001:495-498.
  • 8郜红建,蒋新,王芳,卞永荣,赵振华,王代长,焦文涛.叶类蔬菜有机氯农药残留测定过程中的提取和净化[J].环境化学,2004,23(5):587-590. 被引量:20
  • 9全国农药残留试验研究协作组.食品中农药最高残留限量(MRL)国家标准(GB 2763-1981)[S]//农药残留量实用检测方法手册(第2卷).北京:化学工业出版社,2001:5.

二级参考文献10

  • 1Colume A,Cardens S,Gallego M et al.,Semiautomatic Multiresidue Gas Chromatographic Method for Screening of Vegetables for 25 Organochlorine and Pyrethroid Pesticides.Analytica Chimica Acta,2001,436∶153-162
  • 2Magdic S,Pawliszyn J B,Analysis of Organochlorine Pesticides Using Solid-Phase Microextraction.Journal of Chromatography A,1996,723∶111-122
  • 3Gonzalez M,Miglioranza K S B,Aizpun J E et al.,Organochlorine Pesticide Residues in Leek(Allium Porrum)Crops Grown on Untreated Soils from an Agricultural Environment.Journal of Agricultural and Food Chemistry,2003,51∶5024-5029
  • 4Viana E,Molto J C,Font G.,Optimization of a Matrix Solid-Phase Dispersion Method for the Analysis of Pesticide Residues in Vegetables.Journal of Chromatography A,1996,754∶437-444
  • 5Colume A,Cardenas S,Gallego M et al.,Semiautomatic Method for the Screening and Determination of 23 Organochlorine Pesticides in Horticultural Samples by Gas Chromatography with Electron-Capture detection.Journal of Chromatograhy A,1999,849∶235-243
  • 6Mudhuban I,Gopal M,Chromatographic Techniques in Analysis of Organochlorine Pesticide Residues.Journal of Chromatography A,1996,754∶33-42
  • 7Gonzalez M,Miglioranza K S B,Aizpun J E et al.,Occurrence and Distribution of Organochlorine Pesticides(OCPs)in Tomato(Lycopersicon Esculentum)Crops from Organic Production.Journal of Agricultural and Food Chemistry,2003,51∶1353-1359
  • 8EPA(Environmental Protection Agency),Pesticide Analytical Manual,Vol.1,Multiresidue Methods,Washington D C,3rd ed.,1994
  • 9GB/T5009 19-1996.食品中六六六(BHC)、滴滴涕(DDT)残留量的测定方法国家标准[S].[S].,1996..
  • 10崔艳红,巨天珍,曹军,陶澍.加速溶剂提取法测定蔬菜中的多环芳烃和有机氯化合物[J].农业环境科学学报,2003,22(3):364-367. 被引量:56

共引文献50

同被引文献349

引证文献23

二级引证文献216

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部