新的脉冲进样AAS法测定“麻杏石甘汤”中的微量金属元素

New Pulse Samping Method for Determination of Trace Metals in Traditional Chinese Medicineby Flame Atomic Absorption Spectrometry

中文关键词:  中药  痕量金属  脉冲进样装置  原子吸收光度分析

英文关键词:Traditional chinese medicine  trace metal  pulse sampling apparatus  atomicabsorption spectrophotometry

中文摘要:

      本文研制了一种新的脉冲进样装置,用于火焰原子吸收分光光度法测定中药煎剂中的Ca、Mg、Fe、Mn、Zn五种金属元素含量,实验表明,利用此种装置可以同时获得两种进样方式的分析结果,线性范围比常规法宽两倍,耗样量、精密度及分析速度均优于常规法.

英文摘要:

      In this paper a new pulse sampling apparatus which can be operated in both the pulse introduction and the conventional introduction is described.It has been used to determine five elements,Ca,Mg,Fe,Mn and Zn,in a traditional chinese medicine by flame atomic absorption spectrophotomeny.The experimental results obtained have shown that satisfactory analytical results by two sampling methods can be obtained by using this device.The linear range is about two times extended and the analytical speed and the precision increased.Besides,the sample quantity is greatly reduced.