石墨管涂覆-塞曼效应原子吸收法测定生物样品中微量钡  

Determination of Trace Barium in Biological Samples by Zeeman Graphite AAS with Coated Graphite Tube

作　　者：卜海富[1] 孙昕[1] 窦红漫[2] 

机构地区：[1]安徽医科大学附院肿瘤实验室,230022 [2]合肥安徽中医学院,合肥230022

出　　处：《光谱学与光谱分析》1999年第5期726-727,共2页Spectroscopy and Spectral Analysis

摘　　要：以钨盐涂覆石墨管提高测定生物样品中钡的灵敏度，以基体改进剂提高分析精度，显著延长石墨管使用寿命，方法简便快速，得到了较好的回收率和精密度。Using a tungstate coated graphite tube,trace barium in biological samples was determined by Zeeman graphite AAS.The sensitivity of Ba can be significantly improved.The precision and the lifetime of graphite tube have been improved by adding matrix modifier.The method is simple.The recovery and precision are satisfactory.

关 键 词：钨涂覆管 钡 生物样品 测定 原子吸收光谱 

分 类 号：Q584.03[生物学—生物化学]