| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a reference electrode which does not need to use gelatinized hydrophobic ion liquid that is hard to be produced, has hardness or viscosity of a prescribed level or more, and has a large thickness, leading to improvement of a product life. <P>SOLUTION: The reference electrode includes an inner electrode 1, and a housing 3 that houses a filler 2 for electrically connecting the inner electrode 1 and a sample liquid 4. The filler 2 forms a layer between the inner electrode 1 and an opening 31 that is provided to the housing 3 to make the sample liquid 4 and the filler come into contact each other. The filler 2 is composed of a first layer 21 that comprises a water soluble electrolytic solution, and is formed so as to contact the inner electrode 1; a second layer 22 that comprises a hydrophobic ion liquid, and is formed so as to contact the first layer, and a third layer 23 that comprises a gelatinized hydrophobic ion liquid, and is formed in the opening 21 so as to contact the second layer 22. <P>COPYRIGHT: (C)2012,JPO&INPIT |
