期刊论文

中文

中国现代中药

1673-4890

2018

20

6

721-724

10.13313/j.issn.1673-4890.20180112001

国家食品药品监督管理总局项目(ZG2016-2-03) 中国医学科学院医学与健康科技创新工程经费资助(2017-12M-3-013

本校为第一机构

目的:建立气相色谱法测定金银花中烯啶虫胺的方法.方法:对比不同溶剂的提取率以及固相萃取材料对金银花样品中干扰基质的净化效果,甲醇洗脱,采用DB-1701石英毛细管柱,GC-ECD测定金银花中的烯啶虫胺.结果:该方法在0.005～0.5 mg·L－1范围内线性良好(r＝0.999 3);添加0.02、0.1、0.2 mg·kg－1时的回收率在79.14% ～98.37%之间,RSD在3.66% ～4.39%之间;方法的检出限为0.006 mg·kg－1.结论:建立的检测方法灵敏度高,准确度高,线性好,符合农药残留分析要求,可用于金银花中烯啶虫胺的测定.

Object:To establish a gas chromatographic method for the determination of nitenpyram in Lonicerae Ja-ponicae Flos.Methods:The extraction rate of different solvents and the purification effect of solid phase extraction material on the interference matrix in the sample were eluted with methanol.The DB-1701 quartz capillary column and GC-ECD were used to determine nitenpyram in Lonicerae Japonicae Flos.Results:The method showed a good linearity (r＝0.999 3)in the range of 0.005～0.5 mg·L－1.The recoveries were 79.14% ～98.37% with addition of 0.0...