食品工业科技2024，Vol.45Issue(1)：268-276,9.DOI:10.13386/j.issn1002-0306.2023030024
气相色谱法测定坚果中16种有机氯、拟除虫菊酯类农药残留量
Determination of 16 Kinds of Organochlorine and Pyrethroid Pesticide Residues in Nuts by Gas Chromatography
李娜 1朱文峰 1程国栋 1江婷婷 1王婷 1冀常菲1
作者信息
- 1. 安徽中创食品检测有限公司,安徽芜湖 241000
- 折叠
摘要
Abstract
The purpose of this paper is to establish an analytical method for the determination of 16 organochlorine and pyrethroid pesticide residues in nuts by gas chromatography(GC).The samples were extracted by acetone:hexane(3:7,V:V),purified by 0.2 mL concentrated sulfuric acid sulfonation,and the organochlorines and pyrethroids were separated by a DB-17MS column(30 m×0.32 mm,0.25 μm),and quantified by gas chromatography-electron capture detector(GC-ECD).The results showed that the organochlorine and pyrethroid pesticides showed good linearity in the concentration range of 0.01～0.20 μg/mL and the corresponding peak areas.The determination coefficients(r2)were above 0.996,and the limits of detection were 0.1～0.4 μg/kg.In this study,the spiked recovery experiments were also performed on samples of different matrices(pistachios,macadamia nuts,cashew nuts,pistachios,walnuts,and padanuts)at low(10 μg/kg),medium(40 μg/kg),and high(100 μg/kg)concentrations,respectively.The extraction rates ranged from 81.6%to 119.5%with the relative standard deviations(RSDs)of 1.03%～5.36%.The method is simple,accurate,reproducible and suitable for the determination of 16 organochlorine and pyrethroid pesticide residues in nuts.关键词
坚果/有机氯/拟除虫菊酯类/浓硫酸磺化/气相色谱法Key words
nuts/organochlorine/pyrethroid/concentrated sulfuric acid sulfonation/gas chromatography分类
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李娜,朱文峰,程国栋,江婷婷,王婷,冀常菲..气相色谱法测定坚果中16种有机氯、拟除虫菊酯类农药残留量[J].食品工业科技,2024,45(1):268-276,9.
