摘要
2-巯基苯并噻唑（MBT）是贵金属的萃取剂,它们的配合物吸收波长完全重叠,无法用光度法测定单一贵金属。所有贵金属的MBT配合物均能为CHCl<sub>3</sub>定量萃取,萃取液非常稳定。我们利用HPLC高选择性的特点,分离测定了Rh-Ir,解决了Rh。
The separation of 2-mercaptobenzothiazole complexes has been investigated by HpLC on SiO2 and-C18,-CN and-C9H6 bonded stationary phases.The best separation was realized on SiO2 column,with CHCl3-CC14 (25:75) as the mobile phase at a flow rate of 1.5 ml/rain and the complexes were detected with a UV detector at 354 nm.The lowest detection limits of Rh and Ir were 50ng and 100ng respectively.The coefficients of variation of four replicates were 1.8% for Rh and 1.2% for Ir.
出处
《色谱》
CAS
CSCD
北大核心
1990年第3期177-179,共3页
Chinese Journal of Chromatography
