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Adsorption and ion-pairing interactions of phospholipids in the system of two immiscible electrolyte solutions Part I. The behaviour of lecithin at the water/1,2-dichloroethane interface, compared with that of trimethyloctadecylammonium cation

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F07%3A00081325" target="_blank" >RIV/61388955:_____/07:00081325 - isvavai.cz</a>

  • Alternative codes found

    RIV/00216208:11310/07:11752

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Adsorption and ion-pairing interactions of phospholipids in the system of two immiscible electrolyte solutions Part I. The behaviour of lecithin at the water/1,2-dichloroethane interface, compared with that of trimethyloctadecylammonium cation

  • Original language description

    The behaviour of l-.alpha.-lecithin (DPPC) at the interface of water and 1,2-dichloroethane electrolyte solutions was studied by cyclic voltammetry and surface tension measurements. Model calculations of the cyclic voltammograms were carried out for theconditions employed in the experiments and comparative voltammetric measurements were performed with the trimethyloctadecylammonium cation (TODA+). A five-step mechanism has been proposed and substantiated for the lecithin adsorption/desorption processes, involving sorption, acid?base and association/dissociation interactions. The TODA+ behaviour is simpler, independent of the pH and in principle it corresponds to a single adsorption/desorption step at the interface from the organic phase.

  • Czech name

    Adsorpce a tvorba iontových párů fosfolipidů v systému dvou nemísitelných roztoků elektrolytů. Část I. Chování lecitinu na rozhraní voda/1,2-dichlóretan, porovnání s chováním trimetyloktadecylamonného kationu

  • Czech description

    Chování L-.alpha.-lecitinu (DPPC) na elektrolytovém rozhraní voda/1,2-dichlóretan bylo studováno cyklickou voltametrií a měřením povrchového napětí. Byly provedeny modelové výpočty cyklických voltamogramů pro použité experimentální podmínky a porovnány svoltamogramy trimetyloktadecylamooného kationu (TODA+). Byl navržen pěti stupňový mechanismus adsorpce/desorpce lecitinu, zahrnující adsorpci, acido-basickou rovnováhu a iontové interakce protonizovaného lecitinu. Chování TODA+ je jednodušší, nezávisléna pH a v principu odpovídá jednoduchému mechanismu adsorpce/desorpce.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CG - Electrochemistry

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/LC06063" target="_blank" >LC06063: Flurescence microscopy in biological and medical research</a><br>

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2007

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of the Electroanalytical Chemistry and Journal of Electroanalytical Chemistry and Interfacial Electrochemistry

  • ISSN

    0022-0728

  • e-ISSN

  • Volume of the periodical

    601

  • Issue of the periodical within the volume

    1-2

  • Country of publishing house

    CH - SWITZERLAND

  • Number of pages

    6

  • Pages from-to

    101-106

  • UT code for WoS article

  • EID of the result in the Scopus database