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Elizarova I.R., Masloboeva S.M.

Peculiarities of inductively coupled plasma mass spectrometry in analysis of high-purity solid precursors based on niobium pentoxide

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Abstract. The paper discusses the conditions and peculiarities of inductively coupled plasma mass spectrometry of high-purity and gadolinium- and erbium-alloyed niobium pentoxide. The following metrological parameters for analysis have been calculated: ambiguity, precision, accuracy, and detection limits for analytes. It has been determined that increasing niobium concentration brings about diminishing of intensities of the recorded ionic current in analytes. The matrix effect caused by the presence of niobium in the sample has been shown to appear first at niobium concentrations of 14-15 ppm. The isotopes unaffected by interference have a good stability of analytical signal, both in samples with concentrations of less than 15 ppm and in samples with higher concentrations. Some drift in time of ionic current intensity has been observed.

Keywords: high-purity and alloyed niobium pentoxide, mass spectrometry with inductively coupled plasma, drift of intensity, standard samples, metrological parameters

Printed reference: Elizarova I.R., Masloboeva S.M. Peculiarities of inductively coupled plasma mass spectrometry in analysis of high-purity solid precursors based on niobium pentoxide // Vestnik of MSTU. 2013. V. 16, No 3. P. 550-559.

Electronic reference: Elizarova I.R., Masloboeva S.M. Peculiarities of inductively coupled plasma mass spectrometry in analysis of high-purity solid precursors based on niobium pentoxide // Vestnik of MSTU. 2013. V. 16, No 3. P. 550-559. URL: http://vestnik.mstu.edu.ru/v16_3_n53/550_559_elizar.pdf.

(In Russian, p.10, fig. 2, tables 7, ref 19, Adobe PDF)