气相色谱-质谱法测定多种农药残留
GC-MS Determination of Multi-Pesticide Residues
摘 要
文中比较了气相色谱-负化学离子源-质谱法(GC-NCI-MS)与气相色谱-电子轰击离子源-质谱法(GC-EI-MS)分析多种农药残留量方法中的选择离子、质谱图、线性范围、检出限等指标,试验结果表明:GC-NCI-MS质谱图的碎片离子少,线性范围宽,11种农药除二嗪农及o,p′-DDT外,负化学离子源(NCI)的检出限都低于电子轰击离子源(EI)至少一个数量级;同一个样品,GC-NCI-MS的质谱图杂峰更少.若分子中含有易获得电子的基团,NCI源比EI源有更高的灵敏度和选择性.
气相色谱-电子轰击离子源-质谱法
农药残留
GC-NCI-MS
GC-EI-MS
Pesticide residue
Abstract
It was shown by the results of a comparative study between GC-NCI-MS and GC-EI-MS on their analytical parameters of selected ions,mass spectrograms,linearity ranges and detection limits,that in their application to the determination of 11 pesticide residues in vegetables,besides diazion and o,p′-DDT,less fragment ions,wider linearity ranges and much lower detection limits (at least 10 times lower) were obtained by GC-NCI-MS,and in addition,in the analysis of a same sample,less foreign peaks were observed.In the determination of pesticides in the molecules of which contained easy electron gaining functional groups,it was preferrable to used the GC-NCI-MS for better sensitivity and selectivity.
中图分类号 O657.63
所属栏目 试验与研究
基金项目
收稿日期 2007/7/20
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备注李少霞(1975-),女,广东佛山人,硕士,主管技师,主要从事理化检验研究.
引用该论文: LI Shao-xia,CHEN Ming,LIANG Xu-xia,LI Min,LU Lin. GC-MS Determination of Multi-Pesticide Residues[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2008, 44(8): 711～714
李少霞,陈明,梁旭霞,李敏,鲁琳. 气相色谱-质谱法测定多种农药残留[J]. 理化检验－化学分册, 2008, 44(8): 711～714
被引情况:
【1】滕爽,吴波,高尧华,牛妍妍, "气相色谱分离多环芳香环境污染物用固定相的应用进展",理化检验－化学分册 48, 116-121(2012)
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参考文献
【1】林竹光,刘勇,金珍,等.GC-NCI-MS分析水果蔬菜中多种拟除虫菊酯农药残留[J].厦门大学学报:自然科学版,2005(4):520-524．
【2】Blake T A,Zheng X B,Aggerholm T,et al.Determ ination of pentachlorophenol by negative ion chemical ionization with membrane introduction mass spectrometry[J].Analyst,2002,127:1463-1466．
【3】Yasin M,Baugh P J,Hancock P,et al.Synthetic pyrethroid insecticides analysis by gas chromatography/mass spectrometry operated in negative-ion chemical ionization mode in soil,moss and fish tissue[J].Rapid Communications in Mass Spectrometry,1995,9:1411-1417．
【4】Amendola L,Botre F,Carollo A S,et al.Analysis of organophos-phorus pesticides by gas chromatography-mass spectrometry with negative chemical ionization: a study on the ionization conditions[J].Anal Chim Acta,2002,461:97-108．
【5】Yasin M,Baugh P J,Bonwick G A,et al.Analytical method development for the determ ination of synthetic pyrethroid insecticides in soil by gas chromatograph-mass spectrometry operated in negative-ionization mode[J].J Chromatogr A,1996,754:235-243．
【6】李继革,周 凯,戚双祥.气相色谱法测定蔬菜中10种有机磷农药[J].中国卫生检验杂志,2005,15(3):306-307．
【2】Blake T A,Zheng X B,Aggerholm T,et al.Determ ination of pentachlorophenol by negative ion chemical ionization with membrane introduction mass spectrometry[J].Analyst,2002,127:1463-1466．
【3】Yasin M,Baugh P J,Hancock P,et al.Synthetic pyrethroid insecticides analysis by gas chromatography/mass spectrometry operated in negative-ion chemical ionization mode in soil,moss and fish tissue[J].Rapid Communications in Mass Spectrometry,1995,9:1411-1417．
【4】Amendola L,Botre F,Carollo A S,et al.Analysis of organophos-phorus pesticides by gas chromatography-mass spectrometry with negative chemical ionization: a study on the ionization conditions[J].Anal Chim Acta,2002,461:97-108．
【5】Yasin M,Baugh P J,Bonwick G A,et al.Analytical method development for the determ ination of synthetic pyrethroid insecticides in soil by gas chromatograph-mass spectrometry operated in negative-ionization mode[J].J Chromatogr A,1996,754:235-243．
【6】李继革,周 凯,戚双祥.气相色谱法测定蔬菜中10种有机磷农药[J].中国卫生检验杂志,2005,15(3):306-307．
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