Sample preparation for analysis of enviroument objects based on electrochemical activation phenomenon of aqueous medium-rapid, reliable, accessiable, cheap

L. Svintsova, Nina Nikolaevna Chernyshova

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)

    Abstract

    Stripping voltammetry (SVA) is one of the best determination methods of Cd, Hg, Cu, Pb, Zn, Sb, Bi, As in environment objects. However, to reduce interfering effect of accompanying organic substances a state of sample pretreatment is necessary. The method of electrochemical sample pretreatment suggested and developed by us, is based on electrochemical activation phenomenon (EchA) of aqueous solutions. The method consists of EChPt of water samples containing inorganic salts by alternating current of definite form in anodic chamber of special construction membranous electrolyzer. It permits to reduce negative influence of matrix effects and to determine, for example, volatile elements without high temperature heating the solution. Stabilization of working the mercuric and solid indicator electrodes has been shown. This mode is used for determination of element forms in natural waters by SVA. The reasons of positive effects of EChPt were investigated. They are bound up with polyfactoric action of electric current on aqueous solutions. It results in appearing the high active chemical compounds, changing the energetic, structural, physicochemical parameters of the system EChPt sample - indicator electrode. Suggested method can be easily automatized and used in systems of water quality control in particular for flowing injection analysis. Toxic metals have been determinated by SVA in various waters, suspensions, bottom sediments, biological subjects using SVA. Reassuring results have been obtained also for atomic-absorbing and atomic-emissive spectroscopy.

    Original languageEnglish
    Title of host publicationProceedings - KORUS 2000: 4th Korea-Russia International Symposium on Science and Technology
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages210-213
    Number of pages4
    Volume1
    ISBN (Print)0780364864, 9780780364868
    DOIs
    Publication statusPublished - 2000
    Event4th Korea-Russia International Symposium on Science and Technology, KORUS 2000 - Ulsan, Korea, Republic of
    Duration: 27 Jun 20001 Jul 2000

    Other

    Other4th Korea-Russia International Symposium on Science and Technology, KORUS 2000
    CountryKorea, Republic of
    CityUlsan
    Period27.6.001.7.00

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    Keywords

    • analysis
    • electrochemical activation phenomenon
    • metals
    • sample preparation

    ASJC Scopus subject areas

    • Clinical Biochemistry
    • Computer Networks and Communications
    • Biotechnology
    • Civil and Structural Engineering
    • Mechanics of Materials
    • Electronic, Optical and Magnetic Materials
    • Materials Chemistry
    • Surfaces, Coatings and Films

    Cite this

    Svintsova, L., & Chernyshova, N. N. (2000). Sample preparation for analysis of enviroument objects based on electrochemical activation phenomenon of aqueous medium-rapid, reliable, accessiable, cheap. In Proceedings - KORUS 2000: 4th Korea-Russia International Symposium on Science and Technology (Vol. 1, pp. 210-213). [865953] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/KORUS.2000.865953