Abstract: In this work, the conditions for determining impurity elements (e.g., Ag, As, Sn, Pb, Bi, Ni, Fe, Mn, Cd, Co, Sb, and Zn) in a metal matrix with an average Eion were optimized for the first time using low purity copper as an example. The effect of copper on the emission signals of elements is considered. It is shown that quantitative analysis should be carried out using matrix matching calibration. The variants of nitrogen and argon in the nebulizer gas flow were compared and their optimal values were selected, providing maximum emission signals for most impurities. To protect the torch from copper deposition, the value of the outer nitrogen flow was increased, minimally changing the signal intensities of the elements. It is shown that the addition of argon to the nebulizer gas flow decreases the limits of detection by several times for some elements which were in the range of 0.0003- 0.01% in mass. The method has been shown to have satisfactory long-term stability, which is maintained when nitrogen in the nebulizer is replaced by argon. The accuracy of the analysis was confirmed by the analysis of reference copper materials and recoveries ranged from 80-113%. The relative standard deviation was 3-12% for most elements for two measurements.

Cite: Trunova V.A. , Polyakova E.V. , Komin O.V. , Pelipasov O.V.
Determination of the Composition of Low Purity Copper by Microwave Induced Plasma Atomic Emission Spectrometry
Atomic Spectroscopy. 2025. V.46. N3. P.251-257. DOI: 10.46770/AS.2025.004 WOS

Dates:

Submitted:	Feb 2, 2025
Published print:	Jul 28, 2025
Published online:	Jul 28, 2025

Identifiers:

Web of science:

WOS:001529002200004

Citing: Пока нет цитирований

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