| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a measurement device for measuring pH in a solution to be measured. <P>SOLUTION: A measurement device (1) for measuring pH of a solution to be measured has a reference battery (2) including a tank (20) filled with electrolyte solution, a platinum reference electrode (21) which is soaked in the tank (20) and subject to platinum plating, a measurement battery (4) including a platinum measurement electrode (41) which is soaked in the solution to be measured and subject to platinum plating. The measurement device (1) has a temperature adjustment device (R<SB POS="POST">T</SB>) for ensuring that the temperature of the reference battery (2) and that of the measurement battery (4) are the same and a partial pressure adjustment device (R<SB POS="POST">PP</SB>) for ensuring that the hydrogen partial pressure of the reference battery (2) and that of the measurement battery (4) are the same. <P>COPYRIGHT: (C)2012,JPO&INPIT |
