Patents

Combination Ion-Selective Electrode With A Replaceable Sensing Membrane
US Patent No. US 6,398,931 B1
Inventors: Raymond G. Burchette; Dung Van Chu; Peter F. Boyle

Abstract
An improved combination ion-selective electrode apparatus is provided that comprises an electrode body, a reference electrode, and an ion-sensing electrode. The reference electrode comprises an ion-permeable junction. A removable membrane cap contains an ion-selective membrane. The membrane cap can be removed from the ion-slective electrode apparatus without endangering the integrity of the reference eletrode and is distinct from the ion-permeable junction. The membrane cap contains a removable ion-sensitive membrane that can be replaced if the ion-sensitive membrane fails to thereby place the combination ion-selective electrode apparatus back into service. Moreover, a single combination ion-selective electrode apparatus can be used to measure a variety of analyte ions by simple replacement of the membrane cartridge.

Registered Trademarks

MAGNA-SENS	TWIST-LOCK