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Liquid-metering device for continuous culture |
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| Authors: | Marvin J. Johnson |
| Abstract: | A device is described for aseptically metering liquids at rates as low as 10 ml./hr. The metering rate is constant, but can be readily changed. The device delivers a measured increment of liquid every 10 sec. The volume added is controlled by electrical contants in an electrolyte tube. The medium does not enter this tube. |
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