METHOD OF pH MEASUREMENT, COMPARISON ELECTRODE, AND MULTIPLE ELECTRODE

PROBLEM TO BE SOLVED: To provide a method of pH measurement for an organic solvent test liquid for providing a measurement value of fast responsivity, of stable indication, and of high reliability, and to provide a comparison electrode and a multiple elecyrode used therefor. SOLUTION: This method of...

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Hauptverfasser:	YANAGIDA YOSHINORI, YAMASATO MASAHARU, NAKANO TAISUKE
Format:	Patent
Sprache:	eng
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method of pH measurement for an organic solvent test liquid for providing a measurement value of fast responsivity, of stable indication, and of high reliability, and to provide a comparison electrode and a multiple elecyrode used therefor. SOLUTION: This method of pH measurement for an organic solvent test liquid is provided with a first comparison electrode inner liquid storage part 10A, a second comparison electrode inner liquid storage part 10B, a first liquid junction part 12A for allowing a liquid to flow out from the storage part 10A to the storage part 10B, and a second liquid junction part 12B for allowing a liquid to flow out from the storage part 10B to the exterior. The comparison electrode is employed using a water-soluble organic acid salt solution as a second comparison electrode inner liquid 16 stored in the storage part 10B. COPYRIGHT: (C)2004,JPO&NCIPI