气相色谱-负化学源质谱法测定禽蛋及蛋制品中氟虫腈及其代谢物
发布时间：2018-11-27 11:09
【摘要】：建立了气相色谱-负化学源质谱联用技术(GC-NCI-MS)测定禽蛋及蛋制品中氟虫腈及其3种代谢物残留量的方法。样品经乙腈提取,分散固相萃取技术QuEChERS净化,采用基质校正曲线外标法定量。在0.005~0.10mg/L范围内氟虫腈及其3种代谢物均呈现良好的线性关系,所有目标物的定量限均在0.025~0.10μg/kg范围内,均能满足国内外的限量要求。在0.1、2.0、4.0、20.0μg/kg 4个添加水平下,氟虫腈及其3种代谢物的平均回收率均处于87.0%~99.3%,RSD均≤12.7%,说明该法有较高的准确度和较好的稳定性。综上所述,该法灵敏度、准确度较高,精密度较好,可用于禽蛋及蛋制品中氟虫腈及其代谢物残留量的测定。
[Abstract]:A gas chromatography-negative chemical source mass spectrometry (GC-NCI-MS) method was developed for the determination of fluronitrile and its three metabolites in eggs and egg products. The samples were extracted by acetonitrile and purified by dispersive solid phase extraction (QuEChERS). There was a good linear relationship between fluronitrile and its three metabolites in the range of 0.005~0.10mg/L, and the quantitative limit of all target compounds was 0.025 渭 g/kg, which could meet the domestic and international limit requirements. The average recoveries of fluoronitrile and its three metabolites were 87.0% and 99.3 渭 g/kg 鈮，
本文编号：2360529
[Abstract]:A gas chromatography-negative chemical source mass spectrometry (GC-NCI-MS) method was developed for the determination of fluronitrile and its three metabolites in eggs and egg products. The samples were extracted by acetonitrile and purified by dispersive solid phase extraction (QuEChERS). There was a good linear relationship between fluronitrile and its three metabolites in the range of 0.005~0.10mg/L, and the quantitative limit of all target compounds was 0.025 渭 g/kg, which could meet the domestic and international limit requirements. The average recoveries of fluoronitrile and its three metabolites were 87.0% and 99.3 渭 g/kg 鈮，
本文编号：2360529
本文链接：https://www.wllwen.com/kejilunwen/huaxue/2360529.html
教材专著
