公开(公告)号：US5234568A

公开(公告)日：1993-08-10

申请号：US678742

申请日：1991-04-01

申请人： Katsuhiko Tomita

发明人： Katsuhiko Tomita

IPC分类号： G01N27/28 ,  G01N27/30 ,  G01N27/333

CPC分类号： G01N27/307

摘要： An apparatus for the simultaneous measurement of a plurality of ionic concentrations can utilize a test station having a common support sheet for supporting a plurality of ion selective electrodes, reference electrode and pH responsive electrode. Simultaneous measurements can be taken at the same time from a single sample and the pH reference electrode can validate the operative range of an ion selective electrode.