Scanning Electrochemical Microscopy. 32. Gallium Ultramicroelectrodes and Their Application in Ion-Selective Probes
- 1 August 1996
- journal article
- Published by American Chemical Society (ACS) in Analytical Chemistry
- Vol. 68 (15) , 2651-2655
- https://doi.org/10.1021/ac9512362
Abstract
Gallium ultramicroelectrodes for amperometric measurements in scanning electrochemical microscopy were fabricated by introduction of liquid Ga into drawn glass micropipets. Cyclic voltammetry of Ru(NH3)63+ and the use of this species for SECM imaging is described. Double-barrel micropipet tips with a Ga amperometric electrode and an ion-selective (K+) potentiometric probe can also be constructed. This probe was used to image the K+ activity near a 20-μm-diameter lumen of a glass capillary.Keywords
This publication has 9 references indexed in Scilit:
- Scanning Electrochemical Microscopy. 28. Ion-Selective Neutral Carrier-Based Microelectrode PotentiometryAnalytical Chemistry, 1995
- Advances in scanning electrochemical microscopy. Plenary lectureThe Analyst, 1994
- Investigation of silver iodide-based ion-selective membranes by scanning electrochemical microscopyAnalytica Chimica Acta, 1993
- Scanning electrochemical microscopy. 19. Ion-selective potentiometric microscopyAnalytical Chemistry, 1993
- Scanning electrochemical microscopy: potentiometric probing of ion fluxesFaraday Discussions, 1992
- Chemical Imaging of Surfaces with the Scanning Electrochemical MicroscopeScience, 1991
- Novel Bis-Crown-Ether Derivatives For Potassium SensorsAnalytical Letters, 1989
- Scanning electrochemical microscopy. Introduction and principlesAnalytical Chemistry, 1989
- Ion-Selective MicroelectrodesPublished by Springer Nature ,1986