Original title: Determination of heavy metal poisoning antidote 2,3-dimercapto-1-propanesulfonic acid using silver solid amalgam electrode
Authors: Choińska-Mlynarczyk, Marta ; Hrdlička, Vojtěch ; Redondo, B. R. ; Barek, J. ; Navrátil, Tomáš
Document type: Papers
Conference/Event: Annual International Students Conference on Modern Analytical Chemistry /16./, Prague (CZ), 20200917
Year: 2020
Language: eng
Abstract: 2,3-Dimercapto-1-propane-sulfonic acid (DMPS) was investigated using direct current voltammetry (DCV), differential pulse cathodic stripping voltammetry (DPCSV), differential pulse anodic stripping voltammetry (DPASV), and elimination voltammetry with linear scan (EVLS) at a polished (p-AgSAE)and at a meniscus modified silver solid amalgam electrode (m-AgSAE). EVLS confirmed two consecutive reductions with coupled proton/electron transfer. Voltammetric titrations of DMPS with Pb2+ proved complex formation, with limits of quantification (LOQs) and detection (LODs) 0.3 and 0.1 mu mol L-1 at m-AgSAE and 0.8 and 0.3 mu mol L-1 at p-AgSAE, respectively. Determination of DMPS in commercial drug Dimaval and human urine samples confirmed practical applicability of the developed method.
Keywords: 2,3-dimercapto-1-pro-panesulfonic acid; cathodic stripping voltammetry; elimination voltammetry with linear scan
Project no.: GA20-01589S (CEP)
Funding provider: GA ČR
Host item entry: PROCEEDINGS OF THE 16TH INTERNATIONAL STUDENTS CONFERENCE MODERN ANALYTICAL CHEMISTRY, ISBN 978-80-7444-079-3

Institution: J. Heyrovsky Institute of Physical Chemistry AS ČR (web)
Document availability information: Fulltext is available on demand via the digital repository of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0326747

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