摘要
本研究建立一种桃中氟啶虫酰胺和联苯菊酯的定量分析方法。桃样品经过乙腈(含1%乙酸)振荡提取,PSA净化后采用高效液相色谱串联质谱联用仪,采用电喷雾源正离子扫描模式,外标法定量测定氟啶虫酰胺和联苯菊酯。结果表明,氟啶虫酰胺和联苯菊酯在0.002~0.2 mg/L范围内具有较好的线性关系,相关系数(R^(2))>0.99,桃中氟啶虫酰胺和联苯菊酯的平均回收率为80%~94%,相对标准偏差为2.7%~7.7%,定量限均为0.01 mg/kg。该方法操作简单,快速,选择性好,灵敏度高,适用于桃中氟啶虫酰胺和联苯菊酯的残留分析。
A method for the quantitative analysis of flonicamid and bifenthrin in peach was established.Peach samples were extracted with acetonitrile containing 1% acetic acid,purified with PSA,and determined by HPLC-MS/MS.Flonicamid and bifenthrin were quantified by electrospray positive ion source mode and external standard method.The results showed that there was a good linear relationship in the concentration range of 0.002-0.2 mg/L,and the correlation coefficient was higher than 0.99.The average recoveries of flonicamid and bifenthrin in peach were 80%-94%,the relative standard deviations were 2.7%-7.7%,and the limits of quantification were all 0.01mg/kg.The method was simple and rapid with good selectivity and high sensitivity,which was suitable for residue analysis of flonicamid and bifenthrin in peach.
作者
张双
贾福艳
郭红霞
刘良月
黄鑫
杨沛文
杨雪葳
刘修园
黄成田
ZHANG Shuang;JIA Fuyan;GUO Hongxia;LIU Liangyue;HUANG Xin;YANG Peiwen;YANG Xuewei;LIU Xiuyuan;HUANG Chengtian(Shenyang SYRICI Testing Co.,Ltd.,Shenyang110021,China;Shenyang Research Institute of Chemical Industry Co.,Ltd.,Shenyang110021,China)
出处
《现代农药》
CAS
2022年第5期49-52,共4页
MODERN AGROCHEMICALS
