Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1985-05-08
1989-01-10
Niebling, John F.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204409, 204 1T, G01N 2726
Patent
active
047971916
ABSTRACT:
Measuring device for determination of the activity or of the concentration of ions in solutions, which has an electrode block having several electrodes and with a flow channel, the flow channel being in connection at its one end with a sample vessel and is connected at its other end to a line, in which a pump is interposed, with calibrating solution containers.
Between the pump and the outlet of the electrode block branches off a discharge line, in which a further pump is interposed. Preferably, both pumps are combined into a peristaltic pump, the lines being laid in the segments of the pump.
According to a second embodiment, the electrode block is again in connection with the calibrating solution containers. The delivery of the sample is performed however on the same side through a septum. Advantageously, the other side of the electrode block opens out into a pressure equalization vessel, into which a withdrawal line opens in which in turn the above mentioned peristaltic pump is interposed.
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Allendorfer Wolfgang
Hahnel Reinhard
Metzner Klaus
Polaschegg Hans-Dietrich
Westphal Detlef
Fresenius AG
Marquis Steven P.
Niebling John F.
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