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LITHIUM ION-SELECTIVE MEMBRANE, METHOD OF PRODUCING MEMBRANE, LITHIUM ION-SELECTIVE ELECTRODE, DEVICE FOR MEASUREMENT OF LITHIUM ION CONCENTRATION IN LIQUID AND METHOD FOR DETERMINATION OF LITHIUM ION CONCENTRATION IN LIQUID
LITHIUM ION-SELECTIVE MEMBRANE, METHOD OF PRODUCING MEMBRANE, LITHIUM ION-SELECTIVE ELECTRODE, DEVICE FOR MEASUREMENT OF LITHIUM ION CONCENTRATION IN LIQUID AND METHOD FOR DETERMINATION OF LITHIUM ION CONCENTRATION IN LIQUID
The invention relates to a lithium ion-selective membrane, including a polymer carrier, a plasticizer, a conductive compound and a lithium ion specific ionophoric compound. Tle invention consists In that said ionophoric compound is dibenzyl-14-erown-4 and derivatives thereof, and represents between 0.5 and 3 % by weight of the total composition of the membrane, the polymer carrier representing 25 to 30 % by weight of the total composition of the membrane, the plasticizer from 65 to 72 % by weight of the total composition of the membrane and the conductive compound from 0.2 to 1.5 % by weight of the total composition of the membrane. Said invention can be wed to determine the lithium ion concentration of a fluid, such as a primary fluid for a pressurized water reactor in a nuclear power plant.
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