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Simple Electrochemical Determination of Surface-Active Substances in Natural Waters
Joint Authors
Šeruga, Marijan
Krznarić, Damir
Ćosović, Božena
Cvrković-Karloci, Željka
Source
International Journal of Electrochemistry
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-06-21
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
A simple electrochemical determination of surface-active substances by using time-dependent variation of the capacitive current in a.c.
voltammetry at the HMDE is described.
Surface-active substances were accumulated by stirring solution at the deposition potential of −0.6 V versus Ag/AgCl (sat.
NaCl).
The capacitive current was recorded for different deposition times in the range 0–120 s, wherefrom the linear calibration plot is constructed.
The proposed method was verified for model surfactant TritonX-100 in the concentration range 0.02–0.25 mg/L and for humic acid in the concentration range 1.65–20 mg/L.
The application of the method was demonstrated for freshwater samples of the Drava river, Danube river, and the wetland Kopački Rit, Croatia.
The shape of the i ac -E curves as well as the obtained concentrations of surface-active substances by using humic acid as the calibration substance are quite well describing the type and the nature of organic matter in the freshwater samples.
American Psychological Association (APA)
Cvrković-Karloci, Željka& Krznarić, Damir& Šeruga, Marijan& Ćosović, Božena. 2011. Simple Electrochemical Determination of Surface-Active Substances in Natural Waters. International Journal of Electrochemistry،Vol. 2011, no. 2011, pp.1-7.
https://search.emarefa.net/detail/BIM-470480
Modern Language Association (MLA)
Cvrković-Karloci, Željka…[et al.]. Simple Electrochemical Determination of Surface-Active Substances in Natural Waters. International Journal of Electrochemistry No. 2011 (2011), pp.1-7.
https://search.emarefa.net/detail/BIM-470480
American Medical Association (AMA)
Cvrković-Karloci, Željka& Krznarić, Damir& Šeruga, Marijan& Ćosović, Božena. Simple Electrochemical Determination of Surface-Active Substances in Natural Waters. International Journal of Electrochemistry. 2011. Vol. 2011, no. 2011, pp.1-7.
https://search.emarefa.net/detail/BIM-470480
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-470480