The evaluation of a novel eight-sensor flow cell used in a portable battery-powered flow injection potentiometry system is described. The portable flow injection system is small in size, light weight, requires low power, and uses a notebook computer for real-time display of data and data acquisition, making it practical for remote site monitoring. The electrode response for each sensor was evaluated in terms of flow rate and injection sample volume with silver and iodide standard solutions, each in a 0.1-M sodium acetate background. The mean electrode slopes observed for silver and iodide ions were 57.4 ± 1.0 and 47.5 ± 4.4 mV per activity decade, respectively. Potential applications include multiion capability with eight different liquid-membrane-based electrodes or operation of the measuring electrodes in an additive mode for improved sensitivity and detection limit for a single analyte. © 1996 John Wiley & Sons, Inc.

Item Type:	Refereed Article
Research Division:	Chemical Sciences
Research Group:	Analytical Chemistry
Research Field:	Instrumental Methods (excl. Immunological and Bioassay Methods)
Objective Division:	Expanding Knowledge
Objective Group:	Expanding Knowledge
Objective Field:	Expanding Knowledge in the Chemical Sciences
Author:	Alexander, PW (Professor Peter Alexander)
Author:	Dimitrakopoulos, T (Mr Telis Dimitrakopoulos)
ID Code:	7871
Year Published:	1996
Web of Science® Times Cited:	15
Deposited By:	Applied Science
Deposited On:	1996-08-01
Last Modified:	2011-08-19
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