Summary
High-performance coated-wire ion-selective electrodes based on dodecylmethyl bis(12-crown-4) and bis(benzo-15-crown-5) are used for the simultaneous determination of Na+ and K+ in human urine or serum by means of the Gran's plot method. The results of the potentiometric determination for Na+ and K+ in human urine or serum are in good agreement with the values obtained by flame photometry.
Zusammenfassung
Hochleistungsfähige ionen-selektive Elektroden auf der Basis von Dodecylmethyl-bis-(12-kronen-4)- und Bis-(benzo-15-kronen-5)-ether wurden für die simultane Bestimmung von Natrium und Kalium in menschlichem Harn bzw. Serum mit Hilfe von Gran's plot method verwendet. Die Ergebnisse der potentiometrischen Bestimmung stehen mit denen der Flammenphotometrie in guter Übereinstimmung.
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Tamura, H., Kumami, K., Kimura, K. et al. Simultaneous determination of sodium and potassium in human urine or serum using coated-wire ion-selective electrodes based on bis(crown ether)s. Mikrochim Acta 80, 287–296 (1983). https://doi.org/10.1007/BF01213123
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DOI: https://doi.org/10.1007/BF01213123