气相色谱法对苹果和土壤中克菌丹残留量的测定.doc

气相色谱法对苹果和土壤中克菌丹残留量的测定

摘要:建立苹果和土壤中克菌丹农药的气相色谱检测方法。采用乙***作为提取溶剂,经弗罗里硅柱净化后,通过气相色谱-电子俘获检测器(GC-ECD)测定,面积外标法定量。结果表明,×10-3 mg/L,平均回收率为92%~105%,%~%。该方法灵敏度高、稳定性好、操作简便,完全能够满足苹果和土壤中克菌丹残留量的检测要求。
中国论文网/8/view-
关键词:气相色谱;克菌丹;苹果;农药残留
中图分类号:+5 文献标识码:A 文章编号:0439-8114(2017)03-0548-03
DOI:-
Determination of Captan Residues in Apple and Soil by GC
GE Qian, GOU Chun-lin, ZHAO Dan-qing, CHEN Xiang
(Ningxia Research Institute of Quality Standards and Testing Technology of Agricultural Products, Yinchuan 750002, China)
Abstract: The method for determination of captan residues in apple and soil was established by gas chromatography. Apple and soil samples were extracte
d with acetonitrile solution and cleaned up by Florisil-phase extraction column(SPE),then the extracted solution was determined by gas chromatography-electron capture detector (GC-ECD) and quantified with area external standard method. The results showed that, the detection limit of the method was ×10-3 mg/L,the average recovery was 92%~105%,the relative standard deviation was between %~%. The method was sensitive,stable and simple,pletely meet requirements for the detection of captan residues in apple and soil.
Key words: gas chromatography; captan; apple; pesticide residue
克菌丹又叫
�_普顿,属于传统多位点有机硫类杀菌剂,以保护作用为主,兼有一定的治疗作用。克菌丹杀菌谱