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J Appl Physiol 19: 330-332, 1964;
8750-7587/64 $5.00
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Controlled atmosphere incubator for physiological studies involving the rare gases

James A. Lawrie 1, Heinz R. Schreiner 1, and Clement W. Cowley 1

1 Research Laboratory, Linde Division of Union Carbide Corporation, Tonawanda, New York

The apparatus described is a small-scale sealed ecological system capable of confining the rare gases without significant loss. Biological test chambers suitable for a variety of biological specimens are illustrated. A "canned" pump provides gas circulation; a K2CO3 scrubber column removes CO2. Metabolized oxygen is replenished automatically from an O2 cylinder which is controlled by an ultrasensitive pressure switch. Provision is made for recording oxygen uptake. The equipment provides a constant temperature within 0.5 C over the range of 5–50 C and is capable of maintaining uninterrupted operation for periods of up to 14 days.

small scale sealed ecological system; biological test chambers

Submitted on February 4, 1963






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