Determination of organophosphates pesticide residues in vegetables by GC-MS
10.3969/j.issn.1673-4130.2016.03.021
- VernacularTitle:气相色谱-质谱法检测蔬菜中有机磷类农药残留
- Author:
Xin SONG
;
Qin WANG
;
Xueyu HANG
- Publication Type:Journal Article
- Keywords:
gas chromatography and mass spectrometry;
solid phase extraction;
vegetables;
organophosphates pesticide
- From:
International Journal of Laboratory Medicine
2016;(3):340-341
- CountryChina
- Language:Chinese
-
Abstract:
Objective To establish a method for quantitative determination of 17 kinds of organophosphates pesticides in vegeta‐bles by gas chromatography and mass spectrometry (GC‐MS) .Methods The sample was extracted by acetonitrile ,purified by the a‐mino solid phase extraction small column ,concentrated ,detected by GC‐MS .Then the ion scanning (SIM ) mode was selected to mo‐nitor the specific iron in target compound for conducting the quantitative analysis .Results 17 kinds of compound had good linearity in the limit of detection (LOD) of 0 .001 - 0 .02 mg /kg (S/N = 3) with a relative standard deviation of 1 .05% - 6 .81% ,and the re‐covery rate was 66 .4% - 99 .3% when with cap at 004 ,008 ,0 .40 mg/kg .Conclusion This method has good selection and high sensitivity ,and is suitable for the rapid determination of organophosphates pesticide residues in vegetables .
