| Study on the development of simultaneous-rapid screening methods for residues pesticides in livestock products |
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Jong-shu Kim1, Gon-sup Kim1, Dae-sik Hah2 |
1College of Veterinary Medicine, Gyeonsang National University(Inst. Agri. Fish. Develop.)
2Gyeongnam Provinical Government Institute of Health and Environment |
| 수입 축산식품에서의 잔류농약 동시분석법 개발에 관한 연구 |
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김종수1, 김곤섭1, 하대식2 |
1경상대학교 수의과대학(경상대학교 부속 농어촌 개발연구소)
2경남보건환경연구원 |
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| Abstract |
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A simple and rapid method known as matrix solid phase dispersion(MSPD) for simultaneous determination of 11 pesticide(2,4,5,6-tetrachlor m-xylene, ${alpha}$-BHC, ${gamma}$-BHC, ${delta}$-BHC, aldrin, chlorfulazuron, heptachloroepoxide, dieldrine, endrin, endosulfan sulfate, and tetradifon) in beef fat was estabilished. Beef fat(0.5g) was fortified by adding the 11 pesticides and dibutylchlorendate as internal standard, and blended with 2g bulk $C_{18}$ in pestle and motar. Pesticides were eluted from an extraction column composed of $C_{18}$/ fat matrix blend and 2g activated Florisil by addition of 8ml acetonitrile. Then $2{mu}l$ portion of the acetonitrile elute was directly analyzed by gaschromatography with electron capture detection. Unfortified blank control were treated similarly. Recovery rate were ranged from $83{pm}5.4%$ to $94.2{pm}7.6%$, intra-assay variability and inter-assay variability were ranged from 2.3% to 7.4%(n=5 for each insecticides) and from $6{pm}1%$ to $12{pm}3%$(n=10 for each insecticides), respectively. These results indicated that the MSPD methodology is aceptable for the extraction, determination and screening of residues 11 chroniated pesticides in beef fat. |
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