光纤传感共振瑞利散射荧光法测定新疆黄芪中痕量砷
Determination of Trace Arsenic in Astragalus membranaceus by Fiber-optic Resonance Rayleigh Scattering
布热米古丽·买买提 1邱殿光 2刘峰1
作者信息
- 1. 喀什地区第一人民医院,新疆喀什844000
- 2. 泰州市兴化市第五人民医院,江苏泰州225300
- 折叠
摘要
[目的]利用光纤传感共振瑞利散射荧光法测定中草药黄芪中痕量砷.[方法]将黄芪进行前处理,采用氢化物发生一催化,结合光纤传感,优化试验条件,共振瑞利散射光谱法测定砷含量.[结果]最佳试验条件为0.3 mol/L硫酸、0.9 mol/L NaBH4 、0.2 mol/LNaBH4.方法学考察显示,该方法的RSD为6.9％,回收率为96％ ～ 105％.[结论]该方法较简单、易行、准确度高、稳定性好,值得推广应用.
Abstract
[Objective] The aim was to determine the trace arsenic in Radix Astragali by optical fiber-sensing resonance rayleigh scattering method.[Method] A.membranaceus was pretreated by hydride generation-catalysis,combined with optical fiber sensing,experimental conditions were optimized and arsenic content was determined by resonance rayleigh scattering spectroscopy.[Result] The best experimental conditions were 0.3 mol/L sulfuric acid,0.9 moL/L NaBH4 and 0.2 mol/L NaBH4.RSD was 6.9％ and the recovery was between 96％-105％.[Conclusion] The method is simple,easy,accurate,stable and worthy of popularization and application.
关键词
黄芪/砷/含量测定/光纤传感共振瑞利散射荧光法Key words
Astragalus membranaceus/Arsenic/Content determination/Fiber-optic resonance rayleigh scattering引用本文复制引用
出版年
2017
国家科技期刊平台
NSTL
维普
万方数据