몇가지 작물중 침투성 살충제 Carbofuran의 잔류량 분석 = Residue Analysis of the Systemic Insecticide Carbofuran in Some Crops

다국어 초록 (Multilingual Abstract)

In order to ascertain the safety of the systemic insecticide carbofuran - treated crops. garlic, peanut and potato were collected randomly from markets near the major producing farms and analyzed for the residues of carbofuran and its main metabolite, 3-hydroxycarbofuran. The in vitro metabolism of carbofuran in phosphate buffer extracts of the crops was investigated. The results obtained were as follows.
1.The recoveries of carbofuran and 3- hydroxycarbofuran from the spiked samples were 92~ 100% in all samples. The detection limit and minimum amount of carbofuran detected were 0.02ppm and 0.1ng, and those of 3-hydroxycarbofuran 0.06ppm and 0.3ng, respectively.
2.Two mature garlic samples out of 20 contained 0.13 and 0.07ppm of carbofuran, respectively, showing a detection frequancy of 10%. The residue level was less than the maximum residue limit(0.5ppm) set by the health authorities in Korea. Only one mature garlic sample out of 20 contained 0.13ppm of 3-hydroxycarbofuran.
3.The residues of carbofuran and 3-hydroxycarbofuran in the immature garlic, peanut and potato samples were less than the detection limits.
4.The application of carbofuran to the fields of garlic, peanut and potato would be safe, considering that the estimated maximum acceptable daily intake of carbofuran from garlic was 0.0007mg which is 0.13% of the maximum acceptable daily intake(0.55mg) .
5.Carbofuran was hydrolyzed in vitro mainly to carbofuran phenol(m/z 164) in phosphate buffer extracts of the three crops in contrast to the major oxidative metabolism in situ. The amount of the metabolite increased with the incubation time.

목차 (Table of Contents)

• Ⅰ.서 론
• Ⅱ.재료 및 방법
• 1.시료의 수집
• 2.시료 분석
• 3.작물의 Phosphate buffer 추출액중 carbofuran의 분해
• Ⅲ.결과 및 고찰
• 1.회수율 및 검출한계
• 2.작물 잔류성
• 3.Carbofuran의 안전성 평가
• 4.작물의 phosphate buffer 추출액중 carbofuran의 분해
• Ⅳ.적 요
• Ⅴ.인용문헌