农药科学与管理2026，Vol.47Issue(7)：34-40,7.
超高效液相色谱-串联质谱法同时测定红花中甜菜安、甜菜宁及乙氧呋草黄残留的分析方法研究
Simultaneous Determination of of Desmedipham,Phenmedipham,and Ethofumesate Residues in Safflower by Ultra-high Performance Liquid Chromatography-Tandem Mass Spectrometry
宋广悦 1朱丹 1滕瑶 2陈国峰 2魏民1
作者信息
- 1. 黑龙江省植检植保站,黑龙江 哈尔滨 150036
- 2. 黑龙江省农业科学院农产品质量安全研究所,黑龙江 哈尔滨 150086
- 折叠
摘要
Abstract
This study aimed to establish a rapid,sensitive,and accurate method using Ultra-high Performance Liquid Chromatography-Tandem Mass Spectrometry(UPLC-MS/MS)for the simultaneous determination of the carbamate herbicides desmedipham and phenmedipham,and the benzofuran herbicide ethofumesate in fresh and dried safflower(Carthamus tinctorius L.).The samples were extracted with 0.1％formic acid-acetonitrile solution,followed by liquid-liquid partitioning induced by sodium chloride.The upper organic phase was filtered and directly injected for analysis,and quantification was performed using the external standard method.The results showed that all three analytes exhibited good linearity within the concentration ranges of 0.005～0.2 mg/L(in solvent)and 0.01～1 mg/L(in matrix),with correlation coefficients(R)greater than 0.9970.At fortification levels of 0.02,0.1,and 1 mg/kg,the average recoveries ranged from 88％to 110％,with relative standard deviations(RSDs)of 1.5％and 12.3％.The limits of quantification(LOQs)for all analytes were 0.02 mg/kg,and the limits of detection(LODs)were at the 10-2 ng level.Matrix effect evaluation revealed significant signal suppression in both fresh and dried safflower matrices,ranging from-42.4％to-91.3％.This method is simple,reproducible,and highly sensitive,meeting the requirements for rapid screening and confirmatory analysis of desmedipham,phenmedipham,and ethofumesate residues in safflower,and providing an effective technical tool for quality and safety supervision of related products.关键词
红花/甜菜安/甜菜宁/乙氧呋草黄/残留分析Key words
safflower/desmedipham/phenmedipham/ethofumesate/residue analysis分类
农业科技引用本文复制引用
宋广悦,朱丹,滕瑶,陈国峰,魏民..超高效液相色谱-串联质谱法同时测定红花中甜菜安、甜菜宁及乙氧呋草黄残留的分析方法研究[J].农药科学与管理,2026,47(7):34-40,7.
