气相色谱-氮磷检测器测定辣椒及其土壤中的霜霉威残留  

Residue Analysis of Propamocarb in Peppers and Soil by GC-NPD

作　　者：卢静宜[1] 杨仁斌[1] 傅强[2] 蒋诗琪[1] 欧阳文森[1] 

机构地区：[1]湖南农业大学农业环境保护研究所,湖南长沙410128 [2]湖南化工研究院,湖南长沙410128

出　　处：《安徽农业科学》2015年第2期149-151,共3页Journal of Anhui Agricultural Sciences

基　　金：农业部农药残留项目(2012F365)

摘　　要：[目的]建立辣椒和土壤中霜霉威残留量的气相色谱-氮磷检测器（GC-NPD）测定方法.[方法]辣椒和土壤样品以丙酮与水（7∶3,V/V）混合溶液提取,经正己烷和二氯甲烷萃取净化后,用气相色谱-氮磷检测器测定,外标法定量.[结果]霜霉威在0.05 ～ 10.00mg/L范围内浓度和峰面积成良好的线性关系;方法的最低检测质量浓度为0.05 mg/kg;平均添加回收率为84.1％ ～96.3％,变异系数为0.8％ ～2.6％.[结论]该测定方法灵敏、稳定,符合农药残留分析方法的技术要求.[ Objective] GC-NDP was established for determination of the propamocarb residue in peppers and soil. [ Method ] Peppers and soil samples were extracted with acetone-water mixed solution （7： 3, V/V）, extracted by n-hexane and dichloromethane, and detected by GC-NPD. The external standard method was adopted for quantification. [ Result] The results showed that there was a good linear relationship between the target substance concentration in the 0.05 - 10.00 mg/L range and peak area. The minimum detectable concentration was 0.05 mg/kg. The av- erage recoveries in peppers and soil were from 84.1% to 96.3% , and the variation coefficients were from 0.8% to 2.6%. [ Conclusion] The measurement method is sensitive and stable, meets the technical requirements of pesticide residue analysis.

关 键 词：霜霉威 辣椒 气相色谱-氮磷检测器 残留量分析方法 

分 类 号：S482.2[农业科学—农药学]