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High-frequency Papyrography of Salts

Abstract

A METHOD termed ‘high-frequency papyrography’, by which chemical substances and, in particular, electrolytes may be readily detected, has already been reported1. The process involves the movement of the papergram between the plates of a condenser in a tuned-grid-type high-frequency circuit, when large changes in the grid current are observed.

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References

  1. J. Pharm. Soc. Jap., 72, 1532 (1952).

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HASHIMOTO, Y., MORI, I. High-frequency Papyrography of Salts. Nature 172, 542–543 (1953). https://doi.org/10.1038/172542b0

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