摘要
本文考察了盐酸、硫酸、硝酸及硼酸中锡的石墨炉原子吸收特性,发现硼酸是石墨炉法测定锡时一种较好的基体改进剂,1％的硼酸加入可以克服一定含量硫酸与盐酸的干扰。
The absorption character of tin in the graphite furnace in HCl, HNO_3, H_2SO_4 and H_3BO_3 was investigated. The mechanism of free atom formation of tin in the different matrixes in graphite furnace was studied. It was found that H_3BO_3 is a good matrix modifier for tin in the graphite furnace. The addition of 1% H_3HB_3 overcame many of the depressive effects observed with a number of matrixes, including sulfate and chloride.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1990年第11期1029-1031,共3页
Chinese Journal of Analytical Chemistry
关键词
锡
石墨炉
AAS
基体改进剂
Atomic absorption spectrometry
Tin
Matrix modifier
