摘要
建立竹笋、平菇、猕猴桃等试验样品中20种有机磷农药的多残留快速检测方法。以乙腈为提取溶剂，超声波振荡提取，气相色谱火焰光度检测器测定，外标法定量。结果表明，20种农药在38min内可以很好分离，添加浓度在0．02～0．10mg·kg^-1范围内，20种有机磷农药的添加回收率在56．87％-115．20％，方法的相对标准偏差RSD小于15％（n=3），检出限为11—36ng·mL^-1。该方法一次性完成试验样品中20种有机磷农药的分离和测定，操作简单、灵敏，满足农药残留分析要求。
An analytical method for determination of organophosphorous pesticide residues in vegetable and fruits was developed. Samples were extracted by acetonitrile and detected by gas chromatography with a flame phtometric detector. The external standard method was used for quantification. The average recoveries ranged from 56. 87% to 115.20% ,and the relative standard deviations （RSD） were less than 15%. The detectable limits were from 11 to 36 ng·mL^-1 for all pesticides. This method efficiently be used to separate and determine 20 kinds of organophosphorous pesticides in the vegetable and fruits.
出处
《安徽农业大学学报》
CAS
CSCD
北大核心
2010年第1期82-87,共6页
Journal of Anhui Agricultural University
基金
国家林业公益性科研专项项目(200804014)
国家林业局林业科学技术研究项目(2006-44)共同资助
关键词
有机磷农药
残留分析
果蔬
organophosphorus pesticide
multiresidue determination
vegetable and fruits
