Determination of ultra-trace Sb(III) in seawater by stripping chronopotentiometry (SCP) with a mercury film electrode in the presence of copper
| Autor: | Ricardo Riso, Jennifer Vandenhecke, Virginie Tanguy, Matthieu Waeles |
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| Přispěvatelé: | Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
MERCURE
Antimony Analytical chemistry chemistry.chemical_element 02 engineering and technology Electrochemistry 01 natural sciences Analytical Chemistry law.invention law [CHIM.ANAL]Chemical Sciences/Analytical chemistry Seawater Electrodes Detection limit Electrolysis 010401 analytical chemistry Estuary Electric Conductivity Reproducibility of Results Stripping chronopotentiometry Mercury 021001 nanoscience & nanotechnology Copper 0104 chemical sciences Mercury (element) chemistry Potentiometry 0210 nano-technology Inorganic species |
| Zdroj: | Talanta Talanta, Elsevier, 2010, 81 (1-2), pp.614-620. ⟨10.1016/j.talanta.2009.12.050⟩ |
| ISSN: | 0039-9140 |
| DOI: | 10.1016/j.talanta.2009.12.050⟩ |
| Popis: | International audience; This work reports the determination of ultra-trace of Sb(III) in seawater by using a stripping chronopotentiometric (SCP) method with a mercury film electrode. A sensitivity and detection limit of 360 ms L μg−1 and 8 ng L−1 (70 pM), respectively, were accomplished for a 15-min electrolysis time. Compared to the only two chronopotentiometric methods reported for Sb(III) determination in seawater, our method is more sensitive and does not need to use a medium exchange procedure before the stripping step. Moreover, the use of a double electrolysis potential (−450 mV and −250 mV) allows the analysis of Sb(III) independently from the Cu level in the sample. The method was successfully used to study the behaviour of dissolved Sb(III) in the Penzé estuary, NW France. |
| Databáze: | OpenAIRE |
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