Krause, Christian and Werner, Tobias and Huber, Christian and Klimant, Ingo and Wolfbeis, Otto S. (1998) Luminescence decay time-based determination of potassium ions. ANALYTICAL CHEMISTRY, 70 (18). pp. 3983-3985. ISSN 0003-2700, 1520-6882
Full text not available from this repository.Abstract
A luminescence decay time-based potassium ion sensor is presented which applies the ion-exchange principle. The bulk membrane consists of valinomycin, plasticized PVC, and the ruthenium(II) tris-4,4'-diphenyl-2,2'-bipyridyl bromothymol blue ion pair [Ru(dibipy)(3)](BTB)(2) as a proton donor. The efficacy of radiationless energy transfer from the donor (the ruthenium complex) to the acceptor (BTB) is mediated by the potassium ion concentration. The concentration of potassium ions can be calculated from either luminescence intensity or decay time. At pH 8.7, the working function ranges from 1 to 100 mM KCl.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | PLASMA; SENSORS; PH |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Analytische Chemie, Chemo- und Biosensorik |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 16 Feb 2023 07:21 |
| Last Modified: | 16 Feb 2023 07:21 |
| URI: | https://pred.uni-regensburg.de/id/eprint/49494 |
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