发明名称 |
Method and device of measuring ion activity |
摘要 |
In a method of measuring ion activity of a liquid sample comprising steps of spotting a reference liquid and the liquid sample on surfaces of ion-selective membranes, respectively, of at least a pair of ion-selective electrode sheets which is electrically insulated from each other, said ion-selective membranes being provided on the top of said ion-selective electrode sheets; and measuring a potential difference between the ion-selective electrodes under the conditions that both liquids are electrically connected to each other by a bridge, the improvement wherein: said each ion-selective electrode sheet is arranged upside down in such a manner that the ion-selective membrane is positioned on the lowest side; and said each liquid spotted from the upper side is temporarily conveyed downwardly to the lower level than the surface of the ion-selective membrane, and then conveyed upwardly to the surface of the ion-selective membrane so as to reach the surface of the ion-selective membrane. A device employable in the method is also disclosed.
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申请公布号 |
US4684445(A) |
申请公布日期 |
1987.08.04 |
申请号 |
US19860881815 |
申请日期 |
1986.07.03 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
SESHIMOTO, OSAMU;NIRASAWA, MITUHARU;TERASHIMA, MASAAKI;SAITO, YOSHIO |
分类号 |
G01N27/28;G01N27/406;(IPC1-7):G01N27/30 |
主分类号 |
G01N27/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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