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

Strmečki, Slađana; Plavšić, Marta; Ćosović, Božena (2010) Constant current chronopotentiometric stripping analysis of "N-catalyst" in sodium chloride solution and seawater. Electroanalysis, 22 (1). pp. 91-98. ISSN 1040-0397

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Abstract

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.

Item Type: Article
Uncontrolled Keywords: N-containing polymeric organic material; peak H; chronopotentiometric stripping analysis; seawater samples
Subjects: NATURAL SCIENCES > Geology
Divisions: Division for Marine and Enviromental Research
Projects:
Project titleProject leaderProject codeProject type
Priroda organske tvari, interakcije s mikrokonstituentima i površinama u okolišu-Irena Ciglenečki-Jušić098-0982934-2717MZOS
Depositing User: Slađana Strmečki Kos
Date Deposited: 20 Dec 2016 13:53
Last Modified: 20 Dec 2016 13:55
URI: http://fulir.irb.hr/id/eprint/1953
DOI: 10.1002/elan.200900233

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