ISE-Ca2+ Membranes

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ISE-Ca2+ Membranes


Description ISE-Ca2+ Membranes: PVC, 4 mm diameter, box of 5 membranes.

To be used with the O2k-TPP+ ISE-Module. The ISE-Ca2+ Membranes have to be ordered separately.

Product ID 42280-01
Type O2k, MultiSensor
Link ISE Manual, O2k-TPP+ ISE-Module#Calcium_electrode, O2k-spares
Ca2+ membranes.jpg

The composition of the ISE-Ca2+ Membranes is similar to the one described by Simon et al[1]. The limit of detection is less than 10 nM in Ca2+ buffered calibration solutions. The main difficulty in establishing reliable Ca2+ measurements is not the Ca2+ sensitive membrane but the methodology of its application in a medium simulating intracellular conditions. Further details: O2k-TPP+ ISE-Module#Calcium_electrode.


  1. Schefer U, Ammann D, Pretsch E, Oesch U, Simon W (1986) Neutral carrier based Ca2+-selective electrode with detection limit in the sub-nanomolar range. Analyt Chem 58:2282-5.