수입식품 중 국내 미등록 농약의 다성분 잔류분석법 적용
Application of Multiresidue Analysis Method of Unregistered Pesticides in Korea for Imported Food
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초록
국외로부터 수입되는 농식품에 대하여 국내에 미등록 된 allidochlor, cycloate, diallate, pebulate, propachlor 및 propham 농약의 다성분 동시분석법을 확립하였다. 분석법은 식품의약품안전청에서 고시한 다종농약다성분 동시분석법 －제2법을 적용하였으며 추출과정에 cetonitrile 추출법과 정제과정에 Florisil SPE cartridge를 사용하였다. 수입 농산물의 대표 시료로 선정된 현미와 오렌지로부터 전체 농약의 회수율은 정량한계 수준에서 83.0∼105.6%, 정량한계 수준의 10배에서 82.8∼110.3%로 나타났으며 변이계수는 전체 시료에서 9.2% 이하로 나타나 잔류농약분석 기준인 70∼ 120%의 회수율과 10% 이내의 변이계수를 만족하였다. 따라서 본 연구에서 확립된 분석법은 수입 농산물 중 allidochlor 외 5종 농약의 잔류 분석에 적용이 가능할 것으로 사료된다.
Abstract
BACKGROUND: Recently in Korea, the import of agricultural products is rising due to the increasing amount of trade. Unregistered pesticides, allidochlor, propachlor, propham, cycloate, diallate and pebulate are widely used as pesticides for rice cultivation in foreign countries, while they are not registered in Korea. Therefore, the residue amount of imported agri-foods should be verified using the proper official analytical method for each of them that has not registered in Korea. METHODS AND RESULTS:This work was conducted to apply the official method of Korea Food & Drug Administration (KFDA) for determining multi class pesticide multiresidues in agricultural commodities. Brown rice and orange which have different characteristics as a matrix were selected as representative samples for residue analysis. The recoveries of cycloate, diallate and pebulate by GC/MS in fortified brown rice and orange with levels of 0.04∼0.4 mg/kg were ranged from 82.8% to 110.3%. The quantification limits of three pesticides in brown rice and orange were 0.04 mg/kg. CONCLUSION:As a result, this method can surely be used as an official method for routine analysis of unregistered pesticides in Korea for imported agri-food.
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