Individual catalytic determination of iridium and rhodium using the oxidation of sulfarsazene by potassium periodate as an indicator reaction in a flow-injection system |
| |
Authors: | E G Khomutova V A Zagorodnikova S A Zagorodnikova O I Ostanina |
| |
Institution: | 19917. Department of Engineering, Lomonosov State Academy of Fine Chemical Technology, pr. Vernadskogo 86, Moscow, 119571, Russia
|
| |
Abstract: | A catalytic method has been developed for the individual determination of trace iridium and rhodium using the oxidation of sulfarsazene by potassium periodate as an indicator reaction in a flow-injection system. The analytical range is from 0.10 to 2.0 μg/mL iridium and from 0.0010 to 0.027 μg/mL rhodium. The detection limits are 0.0074 μg/mL iridium and 0.00095 μg/mL rhodium; the determination error does not exceed RSD = 4% in model solutions. The method is selective in the presence of the majority of colored and platinum-group metals. The accuracy of the results has been confirmed by the standard addition method. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |