著者

石川 徳久 古田 愼作

出版者

中部大学工学部

雑誌

中部大学工学部紀要 (ISSN:09108629)

巻号頁・発行日

vol.42, pp.75-78, 2006-12

被引用文献数

1

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At present, Eisenman equation combining a diffusion potential difference in the glass with a phase boundary potential difference in solution-glass interface tends to have been accepted widely as a theoretical equation of pH-sensing glass electrode potential. In this paper, it is clarified that there are a physiochemical mistake of using the concentration instead of the activity to be originally used in the ionic flux equation and a mathematical mistake of applying a definite integral on the discontinuous phase. Potential equation obtained by correcting these mistakes, is the isomorphic one which is similar to the equation reported by Nikolsky, and it does not coincide with the experimental data.