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  • Title: Free intracellular magnesium concentration in ferret ventricular muscle measured with ion selective micro-electrodes.
    Author: Blatter LA, McGuigan JA.
    Journal: Q J Exp Physiol; 1986 Jul; 71(3):467-73. PubMed ID: 3763808.
    Abstract:
    The free Mg concentration ([Mg]i) was measured in ferret ventricular muscle using single-barrelled Mg-sensitive micro-electrodes. The electrodes were calibrated in solutions containing the [K]i and [Na]i measured in this tissue. In thirteen measurements from seven experiments conforming to strict criteria for calibration and penetration the estimated mean [Mg]i was 0.4 mmol/l. This is to be regarded as an upper limit since it was estimated by linear extrapolation of the calibration curve.
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