DETERMINATION OF NICKEL, ZINC AND COBALT IN ADVANCED MATERIALS BASED ON NixCo3–xO4 AND ZnxCo3–xO4 BY INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY (ICP-MS) AND X-RAY FLUORESCENCE
https://doi.org/10.26896/1028-6861-2018-84-1-I-10-13
Abstract
An approach to analysis of advanced sensor materials based on cobalt oxide modified with zinc or nickel oxides is developed using X- ray fluorescence analysis (XRF) and inductively coupled plasma mass spectrometry (ICP-MS). It is shown that determination of Ni, Zn and Co in novel materials based on cobalt oxide using ICP-MS in solutions is possible, standard deviation being 0.06, 0.06, and 0.05, respectively. The results of the ICP-MS determination of the elements in solutions are used to certify the results obtained by XRF method without sample preparation. It is shown that NixCo3–xO4–д samples can be correctly analyzed without decomposition using X- ray fluorescence analysis. The results of the determination match theoretically calculated values both for the samples obtained from nitrates and from nickel and cobalt oxalates as well. However, calibration based on the ICP-MS results is necessary for X-ray fluorescence analysis of ZnxCo3–xO4 samples. It is shown that zinc content in the samples exceeds the theoretical determined value by 10 – 30% due to incomplete precipitation of cobalt from the solution upon synthesis.
About the Authors
A. A. Krotova
M. V. Lomonosov Moscow State University
Russian Federation
Faculty of Chemistry
Russian Federation
Faculty of Chemistry
K. Ya. Prikhodko
M. V. Lomonosov Moscow State University
Russian Federation
Faculty of Chemistry
Russian Federation
Faculty of Chemistry
S. A. Vladimirova
M. V. Lomonosov Moscow State University
Russian Federation
Faculty of Chemistry
Russian Federation
Faculty of Chemistry
D. G. Filatova
M. V. Lomonosov Moscow State University
Russian Federation
Faculty of Chemistry
Russian Federation
Faculty of Chemistry
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Review
For citations:
Krotova A.A., Prikhodko K.Ya., Vladimirova S.A., Filatova D.G. DETERMINATION OF NICKEL, ZINC AND COBALT IN ADVANCED MATERIALS BASED ON NixCo3–xO4 AND ZnxCo3–xO4 BY INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY (ICP-MS) AND X-RAY FLUORESCENCE. Industrial laboratory. Diagnostics of materials. 2018;84(1(I)):10-13. (In Russ.) https://doi.org/10.26896/1028-6861-2018-84-1-I-10-13
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