Determination of low contents (less than 0.0005%) of arsenic in nickel alloys by ICP-MS and AAS methods with electrothermal atomization

Alekseev A.V., Yakimovitch P.V., Legkodukhova I.S.
UDC
543.51; 669.1
DOI
10.18577/2307-6046-2020-0-11-3-10
Article PDF (Russian) (617.46 KB)
How to cite
Alekseev A.V., Yakimovitch P.V., Legkodukhova I.S. Determination of low contents (less than 0.0005%) of arsenic in nickel alloys by ICP-MS and AAS methods with electrothermal atomization // Proceedings of VIAM. 2020. No. 11. DOI: 10.18577/2307-6046-2020-0-11-3-10. URL: https://test.viam.ru/en/journal/2020/11/1
Keywords
inductively coupled plasma mass spectrometry, atomic absorption, nickel alloys, determination of harmful impurities, chromium analysis, microwave sample preparation.
Abstract

In this work, the determination of low contents (less than 0,0005 wt. %) of arsenic in complex alloyed samples of nickel alloys was carried out by means of inductively coupled plasma mass spectrometry (ICP-MS) and atomic absorption spectrometry with electrothermal atomization. Also, the ICP-MS method was used to determine the arsenic content in chromium, which is an alloying component of nickel alloys. A technique for dissolving a sample and preparing it for analysis is presented. Spectral interferences are eliminated by applying mathematical correction equations, a reaction-collision cell and using corrective additives. The correctness of the results obtained is confirmed by the analysis of certified reference materials of nickel alloys and chromium.

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