摘要
建立了超高效液相色谱-串联质谱(UPLC-MS/MS)测定桃中氟啶虫酰胺、呋虫胺及代谢物残留量的方法。样品经1%乙酸水溶液涡旋提取,采用电喷雾离子源正离子扫描,多反应监测(MRM)模式下,外标法定量。结果表明:方法在0.002~0.100μg/mL范围内线性良好,相关系数(R2)>0.99;在0.05、 0.8、 4.0 mg/kg添加水平下四种农药的平均回收率为80%~115%,相对标准偏差1%~6%,定量限均为0.05 mg/kg。
A method was established for the simultaneous determination of flonicamid, dinotefuran and metabolites residues in peach by UPLC-MS/MS. The sample was vortexed extraction with 1% acetic acid water,then detected by MS/MS eqipped with positive electrospray ionization(ESI +) in multiple reaction monitoring(MRM) mode and quantified by external standard method. The results showed that the limits of quantitation were 0.05 mg/kg;the correlation coefficient of 4 pesticides were higher than 0.99 in a concentration ranged from0.002 μg/mL to 0.100 μg/mL. The mean spiked recoveries of 4 pesticides at 0.05, 0.8 and 4 mg/kg with spiked levels ranged from 80% to 115% at a relative standard deviations(RSD) between 1% and 6%.
作者
曾利红
欧阳宇迪
欧晓明
侯根连
晏姣
欧将
梁贵平
宋强勇
聂春林
ZENG Li-hong;OUYANG Yu-di;OU Xiao-ming;HOU Gen-lian;YAN Jiao;OU Jiang;LIANG Gui-ping;SONG Qiang-yong;NIE Chun-lin(National Engineering Research Center for Agrochemicals,Hunan Research Institute of Chemical Industry,Changsha 410014,China;Hunan Province Key Laboratory for Agrochemicals,Changsha 410014,China;HRICI Test Co.,Ltd.,Changsha 410014,China)
出处
《精细化工中间体》
CAS
2021年第4期77-80,共4页
Fine Chemical Intermediates
基金
湖南省企业科技创新团队支持计划资助项目(海利新材料科技创新创业团队)。
