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자료유형
학술저널
저자정보
Kim, Jong-Hwan (Department of Environmental Toxicology and Research, Korea Institute of Toxicology) Choi, Sung-Gil (Department of Environmental Toxicology and Research, Korea Institute of Toxicology) Kwon, Young Sang (Department of Environmental Toxicology and Research, Korea Institute of Toxicology) Hong, Su-Myeong (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration) Seo, Jong-Su (Department of Environmental Toxicology and Research, Korea Institute of Toxicology)
저널정보
한국응용생명화학회 Applied Biological Chemistry Applied Biological Chemistry 제61권 제1호
발행연도
2018.1
수록면
15 - 23 (9page)

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초록· 키워드

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Cabbage reference material for pesticide multiresidue analysis was developed in accordance with the ISO Guide 35, ISO Guide 13528 and European Union Reference Laboratories-Proficiency Test standard protocols. Ten pesticides (acetamiprid, azoxystrobin, boscalid, buprofezin, carbendazim, difenoconazole, ethofenprox, imidacloprid, pyraclostrobin and tebuconazole) detected at relatively high levels in agricultural products in Korea were selected for this study. The developed material was evaluated for homogeneity and stability according to the statistical assessment method specified by international standards. Analysis of variance was carried out to calculate the within-bottle standard variation ($s_{wb}$) and the between-bottle standard variation ($s_{bb}$). Values of $s_{wb}$ and $s_{bb}$ varied by less than 4.7% of assigned values. Homogeneity was also assessed using Cochrane testing of outliers. All pesticides in the material were uniformly distributed within or between all bottles. Stability tests were conducted at room temperature ($20-30^{\circ}C$) for 12 days, under cold conditions ($4-8^{\circ}C$) for 40 days, under freezing conditions ($-20^{\circ}C$) for 70 days and under deep freezer conditions ($-80^{\circ}C$) for 234 days. Stability was evaluated based on the ISO Guide 35 statistical model, and results showed no significant decrease in stability during storage for any pesticide under any condition. We therefore conclude that the cabbage material could be used for future proficiency tests and/or validation of pesticide residue analysis.

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