摘要
本研究旨在探索啶虫脒、噻虫胺、噻虫嗪、哒螨灵、联苯菊酯和高效氟氯氰菊酯在茄子中的残留降解动态,以支持食品安全和生态环境保护。通过气相色谱—三重四极杆质谱法和液相色谱—三重四极杆质谱法,检测了这些农药在茄子中的降解情况,并采用一级动力学模型拟合了降解曲线,得到了农药组分的半衰期。结果表明,农药残留降解受到农药种类、环境条件和作物种类等多重因素的影响,不同农药在茄子中的残留期有所差异。部分农药的降解需结合二级动力学模型进行深入分析,从而得到了新的拟合降解方程。本研究为茄子种植中农药的合理施用及减少农药残留提供了科学指导。
This study aimed to investigate the residue degradation dynamics of acetamidine,clothianidin,thiamethoxam,pyridaben,bifenthrin,and beta-cyfluthrin in eggplants,so as to support food safety and ecological environment protection.The degradation of these pesticides in eggplants was detected by gas chromatographytriple quadrupole mass spectrometry and liquid chromatography-triple quadrupole mass spectrometry,and the degradation curve was fitted by the first-order kinetic model.The half-life period of pesticide components was obtained.The results showed that the degradation of pesticide residues was affected by multiple factors such as pesticide type,environmental conditions,and crop type,and the residual period of different pesticides in eggplants was different.The degradation of some pesticides needed to be further analyzed with the second-order kinetic model to obtain a new fitting degradation equation.This study provided scientific guidance for the rational application of pesticides in eggplant cultivation and the reduction of pesticide residues.
作者
郭海谦
范晓鑫
武寒梅
丁永冲
曹倩玉
邓一蕾
何焕肖
雷哓晖
吴芬
GUO Hai-qian;FAN Xiao-xin;WU Han-mei;DING Yong-chong;CAO Qian-yu;DENG Yi-lei;HE Huan-xiao;LEI Xiao-hui;WU Fen(College of Chemistry and Materials Science,Hebei University,Baoding 071002,PRC;Shijiazhuang Agricultural Product Quality Testing Center,Shijiazhuang 050021,PRC;Institute of Agricultural Facilities and Equipment,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,PRC;Institute of Rural Revitalization(Institute of Medicine and Health Care),Dezhou University,Dezhou 253023,PRC)
关键词
农药残留
茄子
降解动力学
质谱
半衰期
Pesticide residues
Eggplants
Degradation dynamics
Mass spectrum
Half-life period
