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公开(公告)号：US3615321A
公开(公告)日：1971-10-26
申请号：US3615321D
申请日：1968-04-15
Applicant: CARY INSTRUMENTS
Inventor： CARRUTH WILLIS L , NEGUS ROBERT W
Abstract: The method of making a glass electrode more sensitive to K than to Na in electrolytic solution includes the steps of forming a glass melt to have an initial composition of K2O, A12O3 and SiO2 where the mol percents of K2O and Al2O3 are chosen to optimize sensitivity ratio (K sensitivity to Na sensitivity) with low electrode output drift; digesting the melt for an extended period to substantially reduce the electrode output drift rate; and forming the electrode from the digest melt.
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