摘要
采用一个较快速、简单的方法测定牛奶中有机氯和有机磷农药残留物。牛奶中农残经氯仿萃取和固相提取净化后，分别用气相气谱－电子捕获检测器和气相色谱－火焰光度检测器直接测定，色谱柱为ＨＰ－１接ＨＰ－５、ＤＢ１７大口径石英毛细管柱。本法对１７种有机氯农残的回收率范围为 ７１．２％～９９．７％，检测限为 ０．５～９μｇ／ｋｇ。而１１种有机磷农找的回收率范围为 ７０．１％～９６．１％，检测限则为 ０．０１～０．０４ ｍｇ／ｋｇ。
Organochlorine and organophosphate pesticide residues in milk were extracted with chloroform, cleaned up with Florisil solid phase extraction column, and then detcr- mined by gas chromatography using electron capture and flame photometric detection rcspec- tively. The columns used were HP-1/HP-5 and DB 17 capillary columns. The recoverics of organochlorine pesticide residues ranged from 71. 2%-99. 7 %, and detection limits were il1 the range 0. 5-9 μg/kg. For organophosphate pesticide residues, the recoveries ranged from 70.1%-96.1%, and detection limits were in the range 0. 01-0. 04 mg/kg.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1998年第2期158-161,共4页
Chinese Journal of Analytical Chemistry
关键词
残留农药
GC
牛奶
有机氯农药
有机磷农药
Gas chromatography, electron capture detector, flame photometric detector milk, organochlorine pesticides, organophosphate pesticides
