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Pregled bibliografske jedinice broj: 305627

Speciation of trace metals in natural waters: The influence of an adsorbed layer of natural organic matter (NOM) on voltammetric behaviour of copper


Louis, Yoann; Cmuk, Petra; Omanović, Dario; Garnier, Cédric; Lenoble, Véronique; Mounier, Stéphane; Pižeta, Ivanka
Speciation of trace metals in natural waters: The influence of an adsorbed layer of natural organic matter (NOM) on voltammetric behaviour of copper // Analytica chimica acta, 606 (2008), 1; 37-44 doi:10.1016/j.aca.2007.11.011 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 305627 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Speciation of trace metals in natural waters: The influence of an adsorbed layer of natural organic matter (NOM) on voltammetric behaviour of copper

Autori
Louis, Yoann ; Cmuk, Petra ; Omanović, Dario ; Garnier, Cédric ; Lenoble, Véronique ; Mounier, Stéphane ; Pižeta, Ivanka

Izvornik
Analytica chimica acta (0003-2670) 606 (2008), 1; 37-44

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
anodic stripping voltammetry ; metal complexing capacity ; organic matter ; pseudopolarography ; speciation ; trace metals

Sažetak
The influence of an adsorbed layer of the natural organic matter (NOM) on voltammetric behaviour of copper on a mercury drop electrode in natural water samples was studied. The adsorption of NOM strongly affects the differential pulse anodic stripping voltammogram (DPASV) of copper, leading to its distortion. Phase sensitive a.c. voltammetry confirmed that desorption of adsorbed NOM occurs in general at accumulation potentials more negative than -1.4 V. Accordingly, an application of negative potential (-1.6 V) for a very short time at the end of the accumulation time (1% of total accumulation time) to remove the adsorbed NOM was introduced in the measuring procedure. Using this protocol, a well resolved peak without interferences was obtained. It was shown that stripping chronopotentiogram of copper (SCP) in the depletive mode is influenced by the adsorbed layer in the same manner as DPASV. The influence of the adsorbed NOM on pseudopolarographic measurements of copper and on determination of copper complexing capacity (CuCC) was demonstrated. A shift of the peak potential and the change of the half-peak width on the accumulation potential (for pseudopolarography) and on copper concentration in solution (for CuCC) were observed. By applying a desorption step these effects vanished, yielding different final results.

Izvorni jezik
Engleski

Znanstvena područja
Geologija, Kemija



POVEZANOST RADA


Projekt / tema
098-0982934-2720 - MEĐUDJELOVANJA OBLIKA TRAGOVA METALA U VODENOM OKOLIŠU (Pižeta, Ivanka, MZOS - )

Ustanove
Institut "Ruđer Bošković", Zagreb

Profili:

Avatar Url Petra Vukosav (autor)

Avatar Url Ivanka Pižeta (autor)

Avatar Url Dario Omanović (autor)

Citiraj ovu publikaciju

Louis, Yoann; Cmuk, Petra; Omanović, Dario; Garnier, Cédric; Lenoble, Véronique; Mounier, Stéphane; Pižeta, Ivanka
Speciation of trace metals in natural waters: The influence of an adsorbed layer of natural organic matter (NOM) on voltammetric behaviour of copper // Analytica chimica acta, 606 (2008), 1; 37-44 doi:10.1016/j.aca.2007.11.011 (međunarodna recenzija, članak, znanstveni)
Louis, Y., Cmuk, P., Omanović, D., Garnier, C., Lenoble, V., Mounier, S. & Pižeta, I. (2008) Speciation of trace metals in natural waters: The influence of an adsorbed layer of natural organic matter (NOM) on voltammetric behaviour of copper. Analytica chimica acta, 606 (1), 37-44 doi:10.1016/j.aca.2007.11.011.
@article{article, year = {2008}, pages = {37-44}, DOI = {10.1016/j.aca.2007.11.011}, keywords = {anodic stripping voltammetry, metal complexing capacity, organic matter, pseudopolarography, speciation, trace metals}, journal = {Analytica chimica acta}, doi = {10.1016/j.aca.2007.11.011}, volume = {606}, number = {1}, issn = {0003-2670}, title = {Speciation of trace metals in natural waters: The influence of an adsorbed layer of natural organic matter (NOM) on voltammetric behaviour of copper}, keyword = {anodic stripping voltammetry, metal complexing capacity, organic matter, pseudopolarography, speciation, trace metals} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


Uključenost u ostale bibliografske baze podataka:


  • Chemical Abstracts


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