Analysis of chromium and copper by cathodic stripping voltammetry with mixed ligands - Université de Bretagne Occidentale Accéder directement au contenu
Article Dans Une Revue Environmental Chemistry Letters Année : 2003

Analysis of chromium and copper by cathodic stripping voltammetry with mixed ligands

Résumé

Cathodic adsorptive stripping voltammetry is one of the most sensitive analytical methods for ultratrace analysis. The detection limit is usually lower than 10-9 mol/L. Most adsorptive stripping procedures have been focused on the one ligand/one analyte approach. In order to reduce analysis time and sample volume, the possibility of simultaneously determining several metals by cathodic stripping voltammetry using a mixture of ligands was explored, e.g., by Colombo and van den Berg (1997). Here, we describe a new procedure for quantifying chromium and copper using 2,2′-bipyridine and 8-hydroxyquinoline (oxine). The effect of various operational parameters such as buffer type, ligand concentration, potential and time collection were assessed and optimized. Possible interferences by trace metals and organic matter were also investigated. Applicability for fresh water is illustrated. © Springer-Verlag 2003.

Domaines

Chimie

Dates et versions

hal-01763904 , version 1 (11-04-2018)

Identifiants

Citer

M. Le Lann, Catherine Elleouet, François Quentel, C.L. Madec. Analysis of chromium and copper by cathodic stripping voltammetry with mixed ligands. Environmental Chemistry Letters, 2003, 1 (1), pp.98-102. ⟨10.1007/s10311-002-0013-4⟩. ⟨hal-01763904⟩
47 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More