摘要
用镍作基体改进剂,碲的灵敏度提高约2倍,灰化温度提高400℃,抗干扰能力明显增强,不需要分离样品基体,采用平台石墨炉即可测定高温镍基合金中痕量碲。方法检出限为0.041μg/g,样品中碗含量为0.5μg/g时,相对标准偏差为3~6%,回收率在90~99%之间,方法简单快速。
A method is described for the determination of trace amount of tellurium in high temperature nickel-base alloys by platform graphite furnace. In this work, with nickel as a matrix modifier the sensitivity is enhanced, the ashing temperature is increased and the interferences are reduced. The detection limit of the method is 0. 041 μg/g. The relative standard deviation is 3-6%. The recovery rates are 90-99%. The results are satisfactory.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
1994年第6期83-85,共3页
Spectroscopy and Spectral Analysis
关键词
石墨炉
原子吸收
基体改进剂
碲
镍基合金
Platform graphite furnace atomic aborption spectrometry, Matrix modifier,Tellurium