Determination of four additives in aluminum electrolyte by ICP-OES with wet digestion |
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| Institution: | 1. Department of Physics, Presidency University, Kolkata 700073, India;2. Department of Instrumentation Science, Jadavpur University, Kolkata 700032, India;1. State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China;2. School of Metallurgy and Environment, Central South University, Changsha 410083, China;3. Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China;1. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, 18 Fuxue Road, Beijing 102249, China;2. Department of Organic Geochemistry and Environmental Science, College of Geosciences, China University of Petroleum, 18 Fuxue Road, Beijing 102249, China;3. WA – Organic and Isotope Geochemistry Centre, Department of Chemistry, Curtin University, GPO Box U1987, Perth, WA 6845, Australia;4. Department of Chemistry, Oregon State University, Corvallis, OR 97331, USA;5. Department of Organic Geochemistry, Yangtze University, Jingzhou, Hubei 434023, China;1. School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, PR China;2. Department of Physics, Jining University, Qufu 273155, PR China |
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| Abstract: | A method to quantify K, Ca, Mg and Li in aluminum electrolyte by ICP-OES with wet digestion was developed. The samples were digested using aqua regia in PTFE beakers and heated by electric hot plate. The levels of four additives, namely KF, CaF2, MgF2 and LiF in aluminum electrolyte were determined simultaneously by ICP-OES. The recovery rate of this method was 93.27%–103.51%. Accuracy was also proven through the measurement of standard sample of aluminum electrolyte. The developed method was applied to relative standard deviations for three digestion replicates of ten samples were in the range from 0.51% to 8.33%. |
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