Preconcentration of Catecholamins on Hypercrosslinked Polystyrene and Their Determination by High-Performance Liquid Chromatography
- Autores: Tolmacheva V.1,2, Yarykin D.1, Gorbunova M.1, Apyari V.1, Dmitrienko S.1, Zolotov Y.1,2
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Afiliações:
- Department of Chemistry, Moscow State University
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
- Edição: Volume 74, Nº 11 (2019)
- Páginas: 1057-1063
- Seção: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/183329
- DOI: https://doi.org/10.1134/S1061934819090107
- ID: 183329
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Resumo
The use of hypercrosslinked polystyrene for the group sorption preconcentration of catecholamines is proposed. The conditions for the preconcentration of noradrenaline, adrenaline, and dopamine are optimized: a microcolumn (10 × 6 mm), mass of adsorbent 0.03 g, 25 mL of solution (pH ~ 8.5), and transmission rate of the solution 1.0 mL/min. Compounds were desorbed with 1 mL of 6 M acetic acid and determined in the eluate by reversed-phase HPLC with an amperometric detector (E = 0.8 V). Adsorption preconcentration ensures the reduction of the limits of detection for catecholamines by more than 20 times. The limits of detection were 0.7 ng/mL for dopamine and 1 ng/mL for noradrenaline and adrenaline. The procedure was applied to the analysis of model mixtures based on urine.
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Sobre autores
V. Tolmacheva
Department of Chemistry, Moscow State University; Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: dmitrienko@analyt.chem.msu.ru
Rússia, Moscow, 119991; Moscow, 119991
D. Yarykin
Department of Chemistry, Moscow State University
Email: dmitrienko@analyt.chem.msu.ru
Rússia, Moscow, 119991
M. Gorbunova
Department of Chemistry, Moscow State University
Email: dmitrienko@analyt.chem.msu.ru
Rússia, Moscow, 119991
V. Apyari
Department of Chemistry, Moscow State University
Email: dmitrienko@analyt.chem.msu.ru
Rússia, Moscow, 119991
S. Dmitrienko
Department of Chemistry, Moscow State University
Autor responsável pela correspondência
Email: dmitrienko@analyt.chem.msu.ru
Rússia, Moscow, 119991
Yu. Zolotov
Department of Chemistry, Moscow State University; Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: dmitrienko@analyt.chem.msu.ru
Rússia, Moscow, 119991; Moscow, 119991