浙江省亚热带作物研究所等单位研究人员以被苯醚甲环唑、多菌灵及烯酰吗啉污染的铁皮石斛为研究对象,采用乙腈提取,固相分散法净化,高效液相色谱-串联质谱仪分析了3种农药在铁皮石斛鲜条及栽培基质中的残留消解动态,并检测了不同水洗时间、不同溶液浓度(氯化钠和碳酸氢钠)条件下 Researchers from Zhejiang Subtropical Crop Research Institute and other institutes took Dendrobium officinale contaminated with difenoconazole, carbendazim and dimethomorph as the research object, using acetonitrile extraction, solid phase dispersion purification, high performance liquid chromatography-tandem Mass spectrometry analysis of three kinds of pesticides in fresh Dendrobium and the cultivation of matrix residues in the dynamic digestion and testing of different washing time, different concentrations of solutions (sodium chloride and sodium bicarbonate) conditions