Radioactive assay for measuring water absorption by humectants

Details Radioactive assay for measuring water absorption by humectants Radioactive assay for measuring water absorption by humectants

1988-11-28

1990-10-23

Maples, John S.

Radiant energy

Radiation tracer methods

Radioactive tracer methods

436 56, 73 73, 73 76, 252645, G01N 3700, G21H 502

Patent

active

049654500

ABSTRACT:
A radioactive assay method for measuring the humectant properties of cosmetic or non-cosmetic formulations or substances of any consistency, e.g. biological or synthetic liquids, solids, solutions, suspensions, isolated stratum coreum and hair, by measuring the uptake of radioactive water vapor.

REFERENCES:
patent: 2575169 (1951-11-01), Green, Jr.
patent: 4014433 (1977-03-01), Cerwin
Chenion et al., "Study of Adsorption and Desorption of Steam by Materials", B. Soc. Chim, France, (12) 1973, pp. 3273-3277 and English Translation.

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