Confocal fluorescence microscope studies of the adsorptive behavior of dioctadecyl-rhodamine B molecules at a cyclohexane-water interface

X. Y. Zheng, A. Harata

    Research output: Contribution to journalArticle

    4 Citations (Scopus)

    Abstract

    The capabilities of using a confocal fluorescence microscope (CFM) for the interface-selective observation of dye molecules at an oil-water interface were evaluated. A simple expression for a criterion of interface selectivity was derived. The adsorptive behavior of dioctadecyl-rhodamine B at a cyclohexane-water interface was investigated experimentally to demonstrate the interface-selective observation with a CFM. The minimum number of detectable molecules in the probe area at the interface was estimated to be 82 for the present system. Preliminary experimental results of co-adsorption systems composed of adsorbed dye molecules and charged surfactants are also presented.

    Original languageEnglish
    Pages (from-to)131-135
    Number of pages5
    Journalanalytical sciences
    Volume17
    Issue number1
    DOIs
    Publication statusPublished - 2001

    All Science Journal Classification (ASJC) codes

    • Analytical Chemistry

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