中国茶叶2023，Vol.45Issue(12)：40-45,53,7.
超高效液相色谱-串联质谱法测定茶叶中灭草松及其代谢产物残留量
Determination of Residual Levels of Bentazone and Its Metabolites in Tea by Ultra-high Performance Liquid Chromatography-tandem Mass Spectrometry
摘要
Abstract
A rapid method for the determination of bentazone and its metabolites in tea by ultra-high performance liquid chromatography-tandem mass spectrometry was established.The tea samples were extracted with 0.1％glacial acetic acid-methanol,and the liquid supernatant was purified and filtered by PSA,GCB and MgSO4,which was determined by high performance liquid chromatography-mass spectrometry and quantified by external standard method.The results show that under the experimental conditions,the bentazone had a good linear relationship in the range of 0.001～0.010 mg/L,and its metabolites also had a good linear relationship in the range of 0.000 2～0.002 0 mg/L,with correlation coefficients(R2)greater than 0.995.The quantitative limits for bentazone and its metabolites were 0.01 mg/kg and 0.002 mg/kg,respectively.The method is simple,fast,sensitive,with high precision and low cost,and can meet the requirements for the detection of bentazone and its metabolites in tea.关键词
灭草松/6-羟基灭草松/8-羟基灭草松/茶叶/超高效液相色谱-串联质谱法Key words
bentazone/6-hydroxymetazone/8-hydroxymetazone/tea/ultra performance liquid chromatography-tandem mass spectrometry分类
化学化工引用本文复制引用
段联勃,柯顺川,符海霞,杨丽蓉,曹士先,徐杰..超高效液相色谱-串联质谱法测定茶叶中灭草松及其代谢产物残留量[J].中国茶叶,2023,45(12):40-45,53,7.基金项目
福建省区域发展项目(2021N3010) （2021N3010）
