Premium
An Electroanalytical Approach to the Understanding of Copper Exportation in Glaciated Catchments
Author(s) -
Monticelli D.,
Pozzi A.,
Credaro A.,
Dossi C.
Publication year - 2012
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201100560
Subject(s) - genetic algorithm , copper , anodic stripping voltammetry , stripping (fiber) , chemistry , ligand (biochemistry) , environmental chemistry , environmental science , analytical chemistry (journal) , materials science , electrochemistry , ecology , electrode , biology , biochemistry , receptor , organic chemistry , composite material
The use of electroanalytical techniques for the speciation analysis of copper in four glaciated catchments is presented. The method is based on a competitive ligand equilibration scheme coupled with cathodic stripping detection (CLE‐CSV procedure). Issues related to the particular nature of the samples, i.e. their very low ionic strength, and their effects on the speciation procedure are presented and discussed in detail. The presence of strong complexing ligands was evidenced in all of the investigated catchments (30 samples, ligand concentrations 0.2–8.9 nM; K ′=10 11.51 −10 13.60 ). Copper species distribution was for the first time determined in ice samples.