Single Microdroplet/Water Extraction and in situ Microanalysis by Microcapillary Injection and Differential Pulse VoltammetrySingle Microdroplet/Water Extraction and in situ Microanalysis by Microcapillary Injection and Differential Pulse Voltammetry

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 Author Nakatani, Kiyoharu ♦ Noguchi, Tomoko ♦ Negishi, Takayuki Source J-STAGE Content type Text Publisher The Japan Society for Analytical Chemistry Language English
 Abstract A redox species was extracted from water (50 × $10^{-6}$ $dm^{3})$ into a single micro-oil-droplet (30 × $10^{-12}$ $dm^{3})$ in contact with a microelectrode using microcapillary injection and manipulation techniques. Further, an in situ microanalysis of the solute in a single oil droplet was demonstrated by differential pulse voltammetry. The redox species of $10^{-16}$ mol concentrated in the droplet could be quantitatively analyzed independently of the distribution coefficient of the solute between the oil and water phases. The potential of this technique was considered in terms of the preconcentration and separation as well as a microanalysis and an ultratrace analysis. ISSN 09106340 Learning Resource Type Article Publisher Date 2002-01-01 e-ISSN 13482246 Journal Analytical Sciences(analsci) Volume Number 18 Issue Number 5 Page Count 4 Starting Page 533 Ending Page 536