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A Portable Flow Injection Analyzer for Use with Ion-Selective Electrodes


Dimitrakopoulos, T and Alexander, PW and Hibbert, DB, A Portable Flow Injection Analyzer for Use with Ion-Selective Electrodes, Electroanalysis, 7, (12) pp. 1118-1120. ISSN 1040-0397 (1995) [Refereed Article]

DOI: doi:10.1002/elan.1140071204


A battery powered portable monitor based on flow injection potentiometry has been developed weighing 1.8 kg, constructed in a carry‐case and applicable for remote site monitoring. Portability has been achieved using a light weight rechargeable Ni‐Cd battery‐pack (7.2 V). The flow injection manifold incorporates a low powered peristaltic pump, a wall‐jet type flow cell containing a commercial iodide ion‐selective electrode and a Ag/AgCl reference electrode connected to an analog‐to‐digital converter, also powered by the battery pack, and a RS232‐serial output to a notebook computer for real‐time data display and storage. The system performance has been evaluated using the iodide ion‐selective electrode, including the effects of various carrier solutions on sample peak heights, peak widths and the calibration slopes and working ranges. Fast response with peak widths as low as approximately 10 s. was observed with near Nernstian response of −53.8 mV change per activity decade and a log‐linear range between 5 × 10−6 and 1 × 10−2M in a 0.1 M sodium acetate carrier stream. Copyright © 1995 VCH Verlagsgesellschaft mbH

Item Details

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
UTAS Author:Dimitrakopoulos, T (Mr Telis Dimitrakopoulos)
UTAS Author:Alexander, PW (Professor Peter Alexander)
ID Code:7636
Year Published:1995
Web of Science® Times Cited:15
Deposited By:Applied Science
Deposited On:1995-08-01
Last Modified:2011-08-25

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