Naslov
Constant current chronopotentiometric stripping analysis of "N-catalyst" in sodium chloride solution and seawater

Autori
Strmečki, Slađana ; Plavšić, Marta ; Ćosović, Božena

Izvornik
Electroanalysis (1040-0397) 22 (2010), 1; 91-98

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

Ključne riječi
N-containing polymeric organic material ; peak H ; chronopotentiometric stripping analysis ; seawater samples

Sažetak
Catalytic properties and surface activity of nitrogen containing polymeric organic material (N-POM) were analyzed by constant current chronopotentiometric stripping analysis (CPSA) and alternating current (AC) voltammetry in sodium chloride solution (pH 8) and seawater. CPSA proved to be a suitable method for determination of low concentrations of N-POM in seawater by measuring its “ presodium” catalytic peak H. A protein human serum albumin (HSA) (15 % of N) was used as a model compound and the concentration of N-POM from natural seawater samples was expressed in HSA concentration equivalents. Peak H represents an additional parameter for characterization of natural organic matter.

Izvorni jezik
Engleski

Znanstvena područja
Geologija

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