云南化工Issue(6)：47-51,5.DOI:12.3969/j.issn.1004-275X.2014.06.012
茶叶中农药残留联苯菊酯的GC－ECD及GC－MS测定
Determination of Bifenthrin Residue in Tea by GC-ECD and GC-MS
寸宇智 1陈宏锴 1梁恒1
作者信息
- 1. 大理学院农学与生物科学学院，云南 大理671003
- 折叠
摘要
Abstract
Gas chromatography (GC -ECD)and gas chromatography-mass (GC -MS)methods were developed for the detection of bifenthrin residue.Extracted by 4:1 n-hexane:acetone mixed solution, purified by GCB/NH2 SPE column or the combination of LC-Florisil SPE column and Carb SPE column, concentrated by nitrogen-blow and detected by GC-ECD and GC-MS,there was a good linearity within the range of 0.02-0.2 mg/L with the correlation coefficient of 0.999.The recoveries were between 85.0-119.0%with the relative standard derivations between 2.1%-9.6 at the spiking levels of0.05 mg/kg ,0.1 mg/kg and 0.5 mg/kg.The quantification limit was reached 0.01 mg/kg.This method is rapid,sensitive, precise,easy to be operated with good purified result,low detect limit,simple equipment and good detect result.关键词
茶叶/农药残留/联苯菊酯/气相色谱/气相色谱-质谱联用Key words
tea/pesticide residue/bifenthrin/GC-ECD/GC-MS分类
化学化工引用本文复制引用
寸宇智,陈宏锴,梁恒..茶叶中农药残留联苯菊酯的GC－ECD及GC－MS测定[J].云南化工,2014,(6):47-51,5.
