Determination of Rhodium in Rhodium Octanoate Organic Waste Liquid Using Teflon Pressure Vessel-Assisted Sample Digestion and ICP-OES

Abstract:

A novel method for the determination of rhodium in rhodium octanoate organic waste liquid samples was established by inductively coupled plasma atomic emission spectrometry after samples digested by Teflon pressure digestion vessel with aqua regia. Such experiment conditions were investigated as the influence of sample dissolution methods, digestion time, digestion temperature and interfering ions on the determination. Under the optimized conditions, the linear range of calibration graph for Rh was 0 ~ 150.00 mg L^-1, and the recovery was 96.20% ~ 102.36%. The relative standard deviation (RSDs) for Rh was 1.75 %. The proposed method was applied to determine the same samples with atomic absorption spectrometry with the results consistently, which is suitable for the determination of rhodium in rhodium octanoate organic waste liquid samples.

• Periodical: Applied Mechanics and Materials (Volumes 644-650)
• Pages: 5266-5269
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.644-650.5266
• Online since: September 2014
• Authors: Jian Ming Pan*, Xiao Juan Wei
• Keywords: Digestion, ICP-OES, Rhodium, Rhodium Octanoate Organic Waste Liquid, Teflon Pressure Digestion Vessel

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