Journal article
Flow-injection Potentiometric Detection of Phosphates Using a Metallic Cobalt Wire Ion-selective Electrode
Analytical Communications, Vol.34(3), pp.93-95
1997
Abstract
Flow-injection potentiometric detection of phosphate has been undertaken using a metallic cobalt wire ion-selective electrode. The electrode response to phosphate was characterised by potential readings of high stability versus a Ag/AgCl reference electrode, and results have shown that the electrode displays high sensitivity and selectivity towards the phosphate ion. The metallic cobalt wire electrode was used for the flow-injection potentiometric detection of phosphate using a 0.04 mol l-1 potassium hydrogen phthalate carrier at pH 5.0. A linear response with a slope of -38.00±0.5 mV decade-1 change in phosphate activity was obtained in the range 1.0 × 10-5-5.0 × 10-3 mol l-1, and the detection limit was 1 × 10-6 mol l-1. The phosphate electrode described in this paper is robust, simple to use, highly selective, inexpensive and highly stable.
Details
- Title
- Flow-injection Potentiometric Detection of Phosphates Using a Metallic Cobalt Wire Ion-selective Electrode
- Authors
- Z Chen (Author) - University of TasmaniaRoland De Marco (Author) - Curtin University of TechnologyP W Alexander (Author) - University of Tasmania
- Publication details
- Analytical Communications, Vol.34(3), pp.93-95
- Publisher
- Royal Society of Chemistry (R S C) Publications
- Date published
- 1997
- DOI
- 10.1039/A700771J
- ISSN
- 1359-7337; 1359-7337
- Organisation Unit
- University of the Sunshine Coast, Queensland; Office of the Deputy Vice-Chancellor (Research and Innovation)
- Language
- English
- Record Identifier
- 99448839002621
- Output Type
- Journal article
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