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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 李奎承
- 발행연도
- 2014
- 저작권
- 충남대학교 논문은 저작권에 의해 보호받습니다.
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초록· 키워드
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This study was performed to establish the PHRLs of peach during cultivation period, and also to estimate biological half-lives for residues of fenarimol and flufenoxuron. The extracted samples of fenarimol were analyzed by GC-ECD and flufenoxuron by HPLC-DAD. Recoveries of fenarimol at two fortification levels of 0.1 mg/kg, 0.5 mg/kg were 93.69 ± 6.56(%) and 94.45 ± 1.60 (%), respectively.
Even at the application day of fenarimol at single dose showed under MRL standard of Korea, and the biological half-life was 4.7 days. The initial concentration of triple dose was 1.03 mg/kg, which is over MRL standard, but decreased to 0.1 mg/kg at the 10 days after application and the biological half-life was 3.8 days.
Flufenoxuron appeared to be under MRL standard at both single and triple dose, and biological half-life of single and triple dose was 12.0 days and 5.7 days, respectively.
Although the growth factor regarded as a major reason of degradation of pesticide residues, the residue level of fenarimol in single application was reduced 0.09 mg/kg after heavy rain over 0.02 mg/kg of expected degradation amount by peach growth.
However, concentration of flufenoxuron decreased 0.03 mg/kg, the exact as expected by growth factor in the same field condition.
This difference between two chemicals originated by the water solubility of activity ingredient, 13.7 mg/kg (pH 7, 25℃) for fenarimol and 0.00152 mg/kg (pH 7, 25℃) for flufenoxuron, respectively.
The Pre-Harvest Residue Limit(PHRL) of fenarimol were recommended as 1.5 mg/kg and as 1.4 mg/kg for flufenoxuron at 10days before harvest.
Even at the application day of fenarimol at single dose showed under MRL standard of Korea, and the biological half-life was 4.7 days. The initial concentration of triple dose was 1.03 mg/kg, which is over MRL standard, but decreased to 0.1 mg/kg at the 10 days after application and the biological half-life was 3.8 days.
Flufenoxuron appeared to be under MRL standard at both single and triple dose, and biological half-life of single and triple dose was 12.0 days and 5.7 days, respectively.
Although the growth factor regarded as a major reason of degradation of pesticide residues, the residue level of fenarimol in single application was reduced 0.09 mg/kg after heavy rain over 0.02 mg/kg of expected degradation amount by peach growth.
However, concentration of flufenoxuron decreased 0.03 mg/kg, the exact as expected by growth factor in the same field condition.
This difference between two chemicals originated by the water solubility of activity ingredient, 13.7 mg/kg (pH 7, 25℃) for fenarimol and 0.00152 mg/kg (pH 7, 25℃) for flufenoxuron, respectively.
The Pre-Harvest Residue Limit(PHRL) of fenarimol were recommended as 1.5 mg/kg and as 1.4 mg/kg for flufenoxuron at 10days before harvest.
목차
Ⅰ. 서론 1Ⅱ. 재료 및 방법 61. 실험재료 61.1 시험약제, 시약 및 기구 61.2 시험작물재배 111.3 약제살포 121.4 시료채취 및 보관 122. 실험방법 132.1 표준검량선 작성 132.2 정량분석한계 132.3 복숭아 중 fenarimol의 추출 및 정제 142.4 복숭아 중 flufenoxuron의 추출 및 정제 142.5 회수율 실험 152.6 분석기기 및 조건 162.7 생물학적 반감기(biological-half life) 회귀식 산출 172.8 복숭아 생육에 의한 fenarimol과 flufenoxuron의 희석효과 분석 182.9 생산단계 농약잔류허용기준 18Ⅲ. 결과 및 고찰 191. 복숭아 재배기간 중 기상조건과 생체량 증체율 192. 검량선 작성 203. 정량분석한계의 설정 224. 분석법의 회수율 검증 224.1 Fenarimol의 회수율 검증 224.2 Flufenoxuron의 회수율 검증 235. 복숭아 중 농약 잔류량 변화와 생물학적 반감기 265.1 Fenarimol의 잔류량 변화와 생물학적 반감기 275.2 Flufenoxuron의 잔류량 변화와 생물학적 반감기 286. 생장 희석 효과를 이용한 잔류 농도 감소 영향 307. 강우에 따른 작물의 희석효과 348. 다른 작물에서의 fenarimol에 대한 잔류경향비교 379. 다른 작물에서의 flufenoxuron에 대한 잔류경향비교 3810. 복숭아에서의 다른 약제의 잔류경향 비교 3811. 외국의 GAP와 비교 4112. 복숭아의 농약잔류허용기준(PHRL) 산출 42Ⅳ. 결론 43Ⅴ. 참고문헌 45ABSTRACT 49
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