CAJ | 학술논문

采用气相色谱法和高效液相色谱法，研究高效氯氰菊酯和吡虫啉在叶用莴苣中的消解动态，为高效氯氰菊酯和吡虫啉在叶用莴苣上的安全合理使用提供理论依据。结果表明：叶用莴苣中吡虫啉0~5 d消解迅速，5 d时消解率达到78.22%；高效氯氰菊酯0~9 d消解迅速，9 d时消解率达到84.99%。这说明不同类型的农药在叶用莴苣中的降解特性有所不同。吡虫啉和高效氯氰菊酯在叶用莴苣中的半衰期分别为2.82 d和6.13 d。药后14 d，叶用莴苣中的吡虫啉和高效氯氰菊酯的残留量分别为0.2439、0.0662 mg/kg，低于GB2763—2014《食品中农药最大残留限量》规定的吡虫啉在蔬菜中最大残留限量0.5 mg/kg和高效氯氰菊酯在莴苣中的最大残留限量2 mg/kg。
채용기상색보법화고효액상색보법，연구고효록청국지화필충람재협용와거중적소해동태，위고효록청국지화필충람재협용와거상적안전합리사용제공이론의거。결과표명：협용와거중필충람0~5 d소해신속，5 d시소해솔체도78.22%；고효록청국지0~9 d소해신속，9 d시소해솔체도84.99%。저설명불동류형적농약재협용와거중적강해특성유소불동。필충람화고효록청국지재협용와거중적반쇠기분별위2.82 d화6.13 d。약후14 d，협용와거중적필충람화고효록청국지적잔류량분별위0.2439、0.0662 mg/kg，저우GB2763—2014《식품중농약최대잔류한량》규정적필충람재소채중최대잔류한량0.5 mg/kg화고효록청국지재와거중적최대잔류한량2 mg/kg。
Dissipation dynamics ofbeta-cypermethrin and imidacloprid inLactuca sativawas studied by gas chromatography(GC) and high-pressure liquid chromatography (HPLC), providing the theory basis for the security and rational use of beta-cypermethrin and imidacloprid inLactuca sativa. The results were as follows. From 0 to 5 days, the imidacloprid dissolves quickly inLactuca sativa and the digestion rate reaches 78.22% on the 5th day; from 0 to 9 days, the beta-cypermethrin dissolves quickly inLactuca sativa, with the digestion rate of 84.99% on the 9th day. It shows that different types of pesticide have different degradation characteristics in Lactuca sativa. The residual half-life of imidacloprid and beta-cypermethrin inLactuca sativa was 2.82 days and 6.13 days respectively. After 14 days, the residue cencentration of imidacloprid and beta-cypermethrin inLactuca sativa were 0.243 9 and 0.066 2 mg/kg, lower than the maximum residue limit of pesticide in food for imidacloprid (0.5 mg/kg) and for beta-cypermethrin (2 mg/kg).