Abstract
In clinical diagnosis and therapy the Na+- and K+-concentrations in blood and urine are important parameters and are generally determined by flame photometry. During the past few years, however, in clinical laboratories potentiometrie Na+- and K+-measurements with ion-selective elctrodes have become of increasing importance (4). The use of such membrane electrodes would be especially attractive alternatives to flame photometry if direct measurements in whole blood and undiluted urine could be performed. In this case the potentiometric method would offer advantages such as continuous monitoring (1, 6, 8) and routine measurements of the ion-activities in undiluted samples (3, 7). Here we report on the use of such liquid membranes for Na+- and K+-measurements in undiluted urine samples.
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References
Hill JL, Gettes LS, Lynch MR, Hebert NC (1978) Flexible valinomycin electrodes for on–line determination of intravascular and myocardial K+. Am J Physiol 235: H455
Jenny H–B, Riess Ch, Ammann D, Simon W (to be published) Microchim Acta
Ladenson JH (1977) Direct potentiometric measurement of sodium and potassium in whole blood. Clin Chem 23: 1912
Meier PC, Ammann D, Morf WE, Simon W (1980) Liquid–membrane ion–selective electrodes and their biomedical applications. In: Koryta J (ed) Medical and biological applications of electrochemical devices. John Wiley & Sons, p 13
Morf WE, Kahr G, Simon W (1974) Reduction of the anion interference in neutral carrier liquid–membrane electrodes responsive to cations. Anal Letters 7: 9
Osswald HF, Asper R, Dimai W, Simon WW (1979) On–line continuous potentiometric measurement of potassium concentration in whole blood during open–heart surgery. Clin Chem 25: 39
Preusse CJ, Fuchs C (1979) Klinische Anwendbarkeit ionenselektiver Elektroden im Vergleich zur Flammenphotometrie für die Na+– und K+–Best immung im Serum. J Clin Chem Clin Biochem 17: 639
Treasure T (1978) The application of potassium selective electrodes in the intensive care unit. Intens Care Med 4: 83
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© 1981 Springer-Verlag Berlin Heidelberg
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Ammann, D., Jenny, HB., Anker, P., Oesch, U., Simon, W. (1981). Carrier Based Ion-Selective Liquid Membrane Electrodes and their Medical Applications. In: Lübbers, D.W., Acker, H., Buck, R.P., Eisenman, G., Kessler, M.D., Simon, W. (eds) Progress in Enzyme and Ion-Selective Electrodes. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-67924-7_4
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DOI: https://doi.org/10.1007/978-3-642-67924-7_4
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-10499-5
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