| Title: |
Modified Analyses of Trace Elements in Glass Beads by Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS): Application for Particular Silicate Rocks. |
| Authors: |
Kozmenko, Olga A.1 (AUTHOR) olg@igm.nsc.ru, Deviatiiarova, Anna S.1 (AUTHOR) devyatiyarova@igm.nsc.ru, Ragozin, Alexey L.1 (AUTHOR), Sokol, Ella V.1 (AUTHOR), Karputin, Ivan S.1 (AUTHOR), Sokol, Alexander G.1 (AUTHOR) |
| Source: |
Minerals (2075-163X). Feb2025, Vol. 15 Issue 2, p129. 15p. |
| Subject Terms: |
*LASER ablation inductively coupled plasma mass spectrometry, *RARE earth metals, *GLASS beads, *TRACE element analysis, *METAMORPHIC rocks, *TRACE elements |
| Abstract: |
Laser ablation combined with inductively coupled plasma mass spectrometry for the analysis of trace elements in specially prepared glass beads is adapted to silicate rocks of unusual compositions. The modified technique is applied to standard samples and garnet-rich combustion metamorphic rocks (paralavas) from the Hatrurim Formation, Israel. Thirty-two to thirty-five minor and trace elements, including high field strength elements, rare earth elements and Y, are determined in 5–8 mg powder aliquots of samples with large ranges of major-, minor-, and trace-element contents. As the first step of the study, the composition of the NIST SRM 612, BCR-2, and AGV-2 reference materials is analyzed to assess the accuracy and precision of analytical data. The results for standard samples agree well with the compiled estimates (3.5 to 12.4% relative standard deviation) for all elements except Cu (18.1%). The following step is to analyze, with the same procedure, the glass beads of paralava, which are remarkable due to their high trace-element loading. Good agreement (70%–100%) with the compositions determined previously by aqueous nebulizer mode ICP-MS confirms that the method is a promising tool for the rapid and precise analysis of compositionally complex materials available in small amounts. [ABSTRACT FROM AUTHOR] |
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