摘要
本文报道以２－硫基苯并噻唑（ＭＢＴ）为络合剂，用熔融萘萃取痕量的铂和铑，继用石墨炉原子吸收光谱法直接测定之。文中曾对一些有关参数作了试验，并找出各参数的最优值，对共存离子的允许量也作了试验。最后用国家标样和部级管理样核对本法，结果令人满意。
A method is described for the enrichment of traceamounts of platinum and rhodium as 2-mercaptobenzo-thiazole complexes by means of molten naphthalene ex-traction.The solidified naphthalene phase is separatedfrom the aqueous phase, and dissolved in N,N-dimethylformamide (DMF).The noble metals in DMFsolution are determined directly with graphite- furnaceZeeman atomic absorption spectrometry(ET- AAS).Several parameters have been studied experimentally andtheir optirnum values are found. The effect of diverse ionshas been stud ied.Finally the proposed method has beenchecked with national reference materials and controlsamples from the Ministry of Metallurgy,and satisfactoryresults are obtanined.
出处
《分析试验室》
CAS
CSCD
北大核心
1994年第1期31-34,共4页
Chinese Journal of Analysis Laboratory
基金
国家自然科学基金
关键词
铂
铑
熔融萃取
MBT
原子吸收光谱
Platinum,rhodium
molten naphthaleneextraction
2-mercaptobenzothiazole
ET-AAS
traceanalysis
