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流动注射-化学发光法测定猪饲料中的吡喹酮
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作者单位
罗琼,陈复彬,李青轻,黎东,杨春艳 1.西华师范大学化学化工学院化学合成与污染控制四川省重点实验室2.南充市食品药品检验所 
基金项目:四川省化学合成与污染控制重点实验室开放项目(11CSPC-(1-7));四川省教育厅重点项目(15ZA0153);西华师范大学英才科研基金项目(17YC036)
中文摘要:基于吡喹酮对Luminol-NaIO4化学发光体系有较强的抑制作用,并结合流动注射分析技术,建立了测定吡喹酮的流动注射-化学发光(FI-CL)新方法。在最佳实验条件下,吡喹酮在40×10-8~10×10-6 mol/L浓度范围内与相对化学发光强度呈良好的线性关系,该方法对测定吡喹酮显示出较高的灵敏度,检出限(LOD,3σ)为99×10-9 mol/L。对20×10-7 mol/L的吡喹酮平行测定11次,其相对标准偏差(RSD)为14%。采用该方法对猪饲料样品进行加标实验,回收率为985%~100%。该方法已经成功用于猪饲料样品中吡喹酮的测定。
中文关键词:流动注射;化学发光;Luminol-NaIO4;吡喹酮  猪饲料
 
Determination of Praziquantel in Pig Feed by Flow Injection Chemiluminescence
Abstract:A novel flow injection-chemiluminescence(FI-CL) method was established for the determination of praziquantel based on the strong inhibition of praziquantel on Luminol-NaIO4 chemiluminescence system.Under the optimal experimental conditions,there was a good linear relationship between relative intensity of chemiluminescence and praziquantel in the concentration range of 40×10-8-10×10-6 mol/L,with a limit of detection(LOD) of 99×10-9 mol/L.The relative standard deviation(RSD,n=11) was 14% for the determination of 20×10-7 mol/L praziquantel.The proposed method was used for the detection of praziquantel in the spiked pig feed sample with recoveries of 985%-100%.The method was successfully applied in the determination of praziquantel in pig feed with satisfactory results.
Key Words:flow injection  chemiluminescence  Luminol-NaIO4  praziquantel  pig feed
引用本文:罗琼,陈复彬,李青轻,黎东,杨春艳.流动注射-化学发光法测定猪饲料中的吡喹酮[J].分析测试学报,2019,38(7):854-858.
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