Determination of impurities in Nb-based alloy by ICP-MS method

Part I
Alekseev A.V., Yakimovitch P.V., Min P.G.
UDC
543.5: 669.293
DOI
10.18577/2307-6046-2015-0-6-4-4
Article PDF (Russian) (628.08 KB)
How to cite
Alekseev A.V., Yakimovitch P.V., Min P.G. Determination of impurities in Nb-based alloy by ICP-MS method. Part I // Proceedings of VIAM. 2015. No. 6. DOI: 10.18577/2307-6046-2015-0-6-4-4. URL: https://test.viam.ru/en/journal/2015/6/4
Abstract

Different methods of suppression of spectrum interferences and their efficiency in case of 4% (mass.) content of interference-causing elements were described. Content of Cu, Zn, Se, Ag and Cd in Nb-based alloy was determined by the inductively coupled plasma mass spectrometry method (IСP-MS). An effect of the interference-causing alloying elements (Ti, Cr, Zr and Mo) on the results of determination was investigated. The correctness of this measurement technique was controlled by the «added–found» method. Correction of spec-tral interferences at the addition of interference-causing elements in the test solution allowed to improve the accuracy of measurements and to assess the degree of the effect of mass-spectral interferences for each element to be determined. The use of a collision-reaction cell allowed to reduce the mass-spectral interferences of elements at determination of Cu, Zn, Ag and Cd and, respectively, their detection limits by one or two orders of magnitude as compared to t

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