Porous layer flow injection analysis with potentiometric chloride detection.
A porous paper stream with propulsion by a wider porous paper downstream 'pump' provided constant flow rate. Microliter size droplets touched to the surface served as sample injections. Dispersion was controlled by injection position. Potentiometric detection of chloride showed a range of 0.1 mM to 1M. Fifty or more samples per hour are possible.
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Department of Chemistry, Laboratory for Surface Studies, University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA.
Huber
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