中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 微萃取气相色谱法测定蔬菜中有机磷农药残留 广东农业科学 2011,38 (14) 144-145+156
Position: Home > Articles > Determination of organophosphorus pesticide residues in vegetables by gas chromatography combined with microextraction Guangdong Agricultural Sciences 2011,38 (14) 144-145+156

微萃取气相色谱法测定蔬菜中有机磷农药残留

作  者：
刘国霞;张长花;王彩红;赵翠翠
单  位：
滨州学院化学与化工系
关键词：
分散液液微萃取;气相色谱;有机磷农药;蔬菜
摘  要：
采用分散液液微萃取/气相色谱(DLLME/GC)联用技术,分析蔬菜样品中马拉硫磷、对硫磷、甲基对硫磷3种有机磷的农药残留,并对其萃取条件进行优化。优化后的萃取条件如下:萃取剂为20.0μL二氯苯,分散剂为1.5 mL丙酮,萃取时间为1min。3种有机磷农药均具有良好的线性关系,相关系数不低于0.995,加标回收率为89.9%~105.7%,相对标准偏差为3.8%~7.1%,检出限为0.0211~0.0532 mg/kg。将该方法应用于蔬菜中有机磷农药残留的检测,达到了较为理想的效果。
译  名：
Determination of organophosphorus pesticide residues in vegetables by gas chromatography combined with microextraction
作  者：
LIU Guo-xia,ZHANG Chang-hua,WANG Cai-hong,ZHAO Cui-cui (Chemistry and Chemical Engineering Department,Binzhou University,Binzhou 256603,China)
关键词：
dispersive liquid-liquid microextraction;gas chromatography;organophosphorus pesticides;vegetables
摘  要：
A new method was developed for the determination of 3 organophosphorus pesticide residues,including malathion,parathion and methyl parathion,in vegetables by dispersive liquid-liquid microextraction(DLLME) coupled with gas chromatography(GC).The extraction conditions were optimized.A good extraction efficiency was obtained by using 20.0 μL dichlorobenzene as extraction solvent,1.5 mL acetone as disperser solvent extracting for 1 min.The calibration curves for 3 organophosphorus pesticides all had good linear relationships with correlation coefficients not less than 0.995.The spiked recoveries ranged from 89.9% to 105.7% with relative standard deviations of 3.8%~7.1%.The limits of detection were in the range of 0.0211~0.0532 mg/kg.The method was applied in the determination for organophosphorus pesticide residues in vegetables with satisfactory results.

相似文章

导出引用
计量
文章访问数: 16
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46