Determination of arsenic, cadmium, selenium, and tellurium in technogenic raw materials after sorption concentration on hydroxides using inductively coupled plasma atomic emission spectrometry

2014 ◽  
Vol 50 (14) ◽  
pp. 1412-1416 ◽  
Author(s):  
M. S. Doronina ◽  
O. A. Shiryaeva ◽  
D. G. Filatova ◽  
V. B. Baranovskaya ◽  
Yu. A. Karpov
Keyword(s):  
Inductively Coupled Plasma ◽  
Raw Materials ◽  
Atomic Emission ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission Spectrometry ◽  
Inductively Coupled ◽  
Sorption Concentration ◽  
Technogenic Raw Materials ◽  
Cadmium Selenium

Determination of Rhodium in Rhodium-Loaded Carbon Catalysts Using Microwave-Assisted Sample Digestion and ICP-OES

2014 ◽  
Vol 1033-1034 ◽  
pp. 53-56 ◽  
Author(s):  
Jun Yi Pan ◽  
Xiao Juan Wei
Keyword(s):  
Inductively Coupled Plasma ◽  
Atomic Emission ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission Spectrometry ◽  
Sample Digestion ◽  
Inductively Coupled ◽  
Relative Standard ◽  
Novel Method ◽  
Carbon Catalysts

A novel method for the determination of rhodium in rhodium-loaded carbon catalyst samples was established by inductively coupled plasma atomic emission spectrometry after samples digested by microwave oven with aqua regia. Such experiment conditions were investigated as the influence of sample digestion methods, digestion time, digestion temperature and interfering ions on the determination. Under the optimized conditions, the limits of detection (LODs) of Rh for tested solutions were 9 ng mL-1. The relative standard deviations (RSDs) for Rh were 2.11 (CRh = 1 mg L-1, n = 7). The linear ranges of calibration graphs for Rh were 0 ~ 150.00 mg L-1. The proposed method was applied to determine the practical samples with good recoveries and satisfactory results.

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