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  • Title: Comparison of the potentiometric, (31)P NMR, and zero-point titration methods of determining ionized magnesium in erythrocytes.
    Author: Malon A, Wagner B, Bulska E, Maj-Zurawska M.
    Journal: Anal Biochem; 2002 Mar 15; 302(2):220-3. PubMed ID: 11878800.
    Abstract:
    A simple and rapid method of determining ionized magnesium in erythrocytes using a potentiometric clinical analyzer, Microlyte 6 (Kone, Finland), was investigated. The erythrocyte cell membranes were destroyed using ultrasound. The results were compared with those obtained with the (31)P nuclear magnetic resonance spectroscopy method and the zero-point titration method using atomic absorption spectrometry. The results obtained from potentiometry and from the other methods did not differ significantly (Student t test, alpha = 0.01). Total magnesium concentration was determined using atomic absorption spectrometry.
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