Kinetic Analysis of the Solvent Extraction of Cadmium(II) Complexes Using a Cadmium-deposited Recessed Microelectrode and Confocal Fluorescence Microscope

Using a Cd-deposited microelectrode, an electrochemically generated Cd(II) ion in a micro-water phase was reacted with 5-octyloxymethyl-8-quinolinol (HC8Q) in 1,6-dichlorohexane. The fluorescence intensity of Cd(C8Q)2 near the water/oil interface (IF) was analyzed under a confocal fluorescence micro...

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Bibliographic Details
Published inAnalytical Sciences Vol. 33; no. 9; pp. 1081 - 1084
Main Authors NAKATANI, Kiyoharu, SAWADA, Naoki, SATO, Tatsumi
Format Journal Article
LanguageEnglish
Published Singapore The Japan Society for Analytical Chemistry 2017
Springer Nature Singapore
Japan Science and Technology Agency
Subjects
Analytical Chemistry
Cadmium
Chemistry
Confocal fluorescence microscope
Fluorescence
liquid–liquid interface
microdroplet
microelectrode
Microelectrodes
pH effects
Solvent extraction
Solvents
solvent extraction
microelectrode
microdroplet
Confocal fluorescence microscope
liquid–liquid interface
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Summary:Using a Cd-deposited microelectrode, an electrochemically generated Cd(II) ion in a micro-water phase was reacted with 5-octyloxymethyl-8-quinolinol (HC8Q) in 1,6-dichlorohexane. The fluorescence intensity of Cd(C8Q)2 near the water/oil interface (IF) was analyzed under a confocal fluorescence microscope. The rate of decrease of IF was independent of the HC8Q concentration and pH, but was influenced by the phase-boundary potential between the water and oil phases, suggesting that Cd(II) extraction is governed by Cd(C8Q)+ desorption at the interface.
Bibliography:ObjectType-Article-1
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ISSN:0910-6340
1348-2246
DOI:10.2116/analsci.33.1081