Detection of Mancozeb and its Metabolite Ethylene Thiourea Residues in Tropical Fruits
A method for determination the mancozeb and its metabolite ethylene thiourea residues in tropical fruits such as bananas,mangoes,and pineapples was established.Mancozeb was determined using Gas chromatography with electron capture detection(GC-ECD),while ethylene thiourea residues were determined using Ultra performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS).The results show that the limit of quantification for both mancozeb and ethylene thiourea is 0.01 mg/kg.At three fortification levels of 0.1,0.5,and 2 mg/kg,the average recovery rates of mancozeb and ethylene thiourea were 73%～101%and 82%～103%,respectively.This method meets the detection requirements for Mancozeb and its metabolite ethylene thiourea residues in tropical fruits.
万方数据
维普
