A multi-ion sensor cell and data-acquisition system for flow injection analysis |
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| Authors: | TJ Cardwell RW Cattrall PC Hauser IC Hamilton |
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| Institution: | Analytical Chemistry Laboratories, Department of Chemistry, La Trobe University, Melbourne Victoria 3083 Australia;BHP Central Research Laboratories, Newcastle, New South Wales 2287 Australia |
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| Abstract: | The flow-injection system described is used for the determination of four ions simultaneously with detection by solid-contact polymer-membrane ion-selective electrodes. The construction of the flow cell and data-acquisition system are discussed. The programming language FORTH facilitates the fast data acquisition required for flow injection analysis. The utility of the system is demonstrated by applying it to the simultaneous determination of potassium, calcium, nitrated and chloride in soil extracts; the results are compared with standard procedures. |
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