Mg2+-ion-selective microelectrode
Figure 1: Mg2+-ion-selective microelectrode photographed by electrone microscopy. The ion-selective ligand can be seen in the tip of the microelectrode. The liquid junction potential indicating the individual Mg2+-concentration measured, arises at the surface between the reference solution and the ion-selective resin.


Keywords: ion-selective,  Ionselektion,  Schema,  scheme

Mg2+
Figure 2: Changing extracellular concentrations of Mg2+ does not influence intracellular magnesium levels. One can see a typical experiment lasting approximately 3 hours. The signal stabilises some minutes after impalement. The electrode is equilibrated at the end of the experiment. Upon changing extracellullar Mg2+ a small depolarisation of the membrane potential can be seen without influencing the Mg2+-subtraction potential.


Keywords: diagram,  Diagramm,  Mg++