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  • 1990-1994  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Humic acids interactions with metal salts incorporated into the carbon paste electrode (1994)
    Weinheim : Wiley-Blackwell
    Electroanalysis 6 (1994), S. 1009-1013 
    Details
    ISSN: 1040-0397
    Keywords: Humic acid ; Carbon paste ; Metal-humic acid interactions ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The carbon paste electrode (CPE) modified with metal salts [CuCO3. Cu(OH)2 and Ag2SO4] was developed. The voltammetric measurement on these modified electrodes in the presence of humic ligands indicated metal complexation reactions. These electrodes offer the possibility of using them in the study of metal-humic substances interaaions and in the study of minerals behavior in the solutions of humic acids (HAs).
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/elan.1140061115
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  • 2
    Electronic Resource
    Electronic Resource
    Determination of mercury on a carbon paste electrode modified with humic acid (1992)
    Weinheim : Wiley-Blackwell
    Electroanalysis 4 (1992), S. 683-687 
    Details
    ISSN: 1040-0397
    Keywords: Mercury determination ; humic acid ; modified electrodes ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The binding of Hg(II) with humic acid, incorporated into the carbon paste electrode, was verified. This modified humic acid electrode was used for the trace determination of Hg(II). The differential-pulse voltammetry on the electrode modified with humic acid yielded good performance over the concentration range 5 × 10-8-5 × 10-7 M Hg(II). Only Cu(II) interferes with the determination.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/elan.1140040703
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