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哒螨灵在柑桔及土壤中残留的气相色谱测定
作者: 周其峰  莫仁甫  杨玉霞  
单位: (广西农业科学院植物保护研究所  南宁 530007)  
关键词: 哒螨灵  柑桔  土壤  残留分析  气相色谱  
分类号:S481.8;TQ450.2
出版年,卷(期):页码:2012 ,43 ( 1 ): 页码:42-45
摘要:

【Objective】The present experiment was conducted to establish a method to determine pyridaben residues in citrus fruits and soil using gas chromatography and provide a reference of evaluating safety of pyridaben in citrus. 【Method】The samples were extracted with methyl alcohol, purified with petroleum ether, cleaned up using florisil column, and finally tested by gas chromatography using ECD-detector. 【Result】The results indicated that lowest detectable concentration in citrus peel, pulp, whole fruit and soil was 0.001 mg/kg. Sample recovery ranged from 84.78 to 101.18%, and coefficient of variation from 2.31 to 8.68%. 【Conclusion】The present method was easy to operate and gave good isolating and accurate results efficiently, and it is suitable for detecting very low concentration of pyridaben residues in citrus fruits and soils.

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