Molecules
(Oct 2022)
Reversible Sorptive Preconcentration of Noble Metals Followed by FI-ICP-MS Determination
Yulia A. Maksimova,
Alexander S. Dubenskiy,
Lyudmila A. Pavlova,
Ilya V. Shigapov,
Dmitry M. Korshunov,
Irina F. Seregina,
Vadim A. Davankov,
Mikhail A. Bolshov
Affiliations
Yulia A. Maksimova
Chemistry Department, Analytical Chemistry Division, Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
Alexander S. Dubenskiy
Chemistry Department, Analytical Chemistry Division, Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
Lyudmila A. Pavlova
A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilova Street, 119991 Moscow, Russia
Ilya V. Shigapov
Chemistry Department, Analytical Chemistry Division, Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
Dmitry M. Korshunov
Geological Institute of the Russian Academy of Sciences, Pyzhevsky lane 7, 119017 Moscow, Russia
Irina F. Seregina
Chemistry Department, Analytical Chemistry Division, Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
Vadim A. Davankov
A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilova Street, 119991 Moscow, Russia
Mikhail A. Bolshov
Chemistry Department, Analytical Chemistry Division, Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
DOI
https://doi.org/10.3390/molecules27196746
Journal volume & issue
Vol. 27,
no. 19
Abstract
Read online
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.
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