Determination of ultra-trace Sb(III) in seawater by stripping chronopotentiometry (SCP) with a mercury film electrode in the presence of copper

Virginie Tanguy; Matthieu Waeles; Jennifer Vandenhecke; Ricardo Riso

doi:10.1016/j.talanta.2009.12.050

Determination of ultra-trace Sb(III) in seawater by stripping chronopotentiometry (SCP) with a mercury film electrode in the presence of copper

Virginie Tanguy ¹ Matthieu Waeles ¹ Jennifer Vandenhecke ¹ Ricardo Riso ^{1, *}

* Auteur correspondant

1 LEMAR - Laboratoire des Sciences de l'Environnement Marin (LEMAR)

Abstract : 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.

Keywords : Estuary Seawater Inorganic species Antimony Stripping chronopotentiometry

Type de document :

Article dans une revue

Talanta, Elsevier, 2010, 81 (1-2), pp.614-620. 〈10.1016/j.talanta.2009.12.050〉

Domaine :

Chimie / Chimie analytique

Liste complète des métadonnées

http://hal.univ-brest.fr/hal-00451371
Contributeur : Matthieu Waeles <>
Soumis le : jeudi 28 janvier 2010 - 19:40:39
Dernière modification le : jeudi 11 janvier 2018 - 06:22:24

Determination of ultra-trace Sb(III) in seawater by stripping chronopotentiometry (SCP) with a mercury film electrode in the presence of copper

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Determination of ultra-trace Sb(III) in seawater by stripping chronopotentiometry (SCP) with a mercury film electrode in the presence of copper

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