Hydrodynamic electrochemistry in 20 μL drops in the rotating sample system

Gautam N. Shetty; Nilofar Syed; Koji Tohda; Miklós Gratzl

doi:10.2116/analsci.21.1155

Hydrodynamic electrochemistry in 20 μL drops in the rotating sample system

Gautam N. Shetty, Nilofar Syed, Koji Tohda, Miklós Gratzl

Internal Medicine

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6 Scopus citations

Abstract

The Rotating Sample System (RSS) has been conceived in the authors' laboratory as a convection platform for microliter-sized solution volumes. Convection is achieved by rotating a small drop of sample on a stationary substrate by humidified gas jets directed tangentially at the drop base with the working electrode and a liquid junction embedded in it. Simplicity and portability of the device, and substrates complete with microfabricated electrode and junction made potentially disposable, are further competitive advantages with respect to competing, conventional analytical systems. In this work the RSS' performance with variation of system parameters such as the position and size of gas jets used for sample rotation, and position of the working electrode in the substrate are studied. Trace levels of Pb could be detected with this system and is reported here.

Original language	English (US)
Pages (from-to)	1155-1160
Number of pages	6
Journal	Analytical Sciences
Volume	21
Issue number	10
DOIs	https://doi.org/10.2116/analsci.21.1155
State	Published - Oct 2005

ASJC Scopus subject areas

Analytical Chemistry

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10.2116/analsci.21.1155

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Hydrodynamic electrochemistry in 20 μL drops in the rotating sample system

Abstract

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