Reversible Sorptive Preconcentration of Noble Metals Followed by FI-ICP-MS Determination

Autor: Yulia A. Maksimova, Alexander S. Dubenskiy, Lyudmila A. Pavlova, Ilya V. Shigapov, Dmitry M. Korshunov, Irina F. Seregina, Vadim A. Davankov, Mikhail A. Bolshov
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Molecules, Vol 27, Iss 19, p 6746 (2022)
Druh dokumentu: article
ISSN: 1420-3049
97624756
DOI: 10.3390/molecules27196746
Popis: In this paper, we propose the combined procedure of noble metal (NM) determination, including fire assay, acid digestion, and reversible dynamic sorptive preconcentration, followed by flow-injection ICP-MS. Reversible preconcentration of all NMs was carried out using micro-column packed new PVBC-VP sorbent and elution with a mixture of thiourea, potassium thiocyanate, and HCl, which recovers Pd, Ir, Pt, and Au by 95% and Ru, and Rh by 90%. The proposed procedure was approved using certified reference materials.
Databáze: Directory of Open Access Journals
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