Analytical Sciences
Online ISSN : 1348-2246
Print ISSN : 0910-6340
ISSN-L : 0910-6340
Original Papers
Confocal Fluorescence Microscope Studies of the Adsorptive Behavior of Dioctadecyl-rhodamine B Molecules at a Cyclohexane-Water Interface
Xue-Ying ZHENGAkira HARATA
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2001 年 17 巻 1 号 p. 131-135

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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.
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© 2001 by The Japan Society for Analytical Chemistry
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