CAJ | 학술논문

采用有机溶剂液液萃取的方式,以气相色谱-质谱联用仪负化学电离源法同时检测茶叶中氟乐灵、三唑酮和溴丙磷的残留量。茶叶加水浸泡后用丙酮：正己烷=1：1（V/V）的混合溶液高速均质提取,TPT柱净化后,用气相色谱-质谱联用仪进行测定和确认,外标法定量。该方法对茶叶中氟乐灵、三唑酮、溴丙磷的定量限均为0.01 mg/kg,方法在0.01-0.2mg/kg质量浓度范围内具有良好的线性关系。
채용유궤용제액액췌취적방식,이기상색보-질보련용의부화학전리원법동시검측다협중불악령、삼서동화추병린적잔류량。다협가수침포후용병동：정기완=1：1（V/V）적혼합용액고속균질제취,TPT주정화후,용기상색보-질보련용의진행측정화학인,외표법정량。해방법대다협중불악령、삼서동、추병린적정량한균위0.01 mg/kg,방법재0.01-0.2mg/kg질량농도범위내구유량호적선성관계。
A gas chromatography-mass spectrometry method using negative chemical ionization(NCI) was presented for the determination of trifluralin,triadimefon and profenofos residues in tea.In the method,the tea sample was soaked by water and then extracted with acetone: hexane =1:1(V/V) mixed solvent twice,cleaned up on a TPT solid-phase extraction column.After purification,using gas chromatography-mass spectrometry for the determination and confirmation,and the quantification was performed by external standard method.The quantitation limit of this method is 0.01mg/kg for trifluralin,triadimefon and profenofos.The concentration exhibited a good linearity over the range of 0.01 to 0.2 mg/kg.