A Potentiometric Method for Observation of Osmotic Behaviour of Prawns


IN the course of work on osmotic regulation of estuarine invertebrates, it was found that cryoscopic and vapour-pressure methods do not yield reproducible results in a tropical place such as Madras. The potentiometric method outlined here, which is based on the predominance of chloride ions in the blood of animals and in sea water, facilitates a continuous picture of changes in the concentration of the blood of an animal in a given medium and helps us to measure the amount of energy involved.

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GNANAMUTHU, C., RAMACHANDRA REDDY, O. A Potentiometric Method for Observation of Osmotic Behaviour of Prawns. Nature 188, 594–595 (1960). https://doi.org/10.1038/188594a0

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