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The effect of ultrasonic energy on the extraction of anthraquinones from senna pericarps

โœ Scribed by WOODFORD, R.; MORRISON, J. C.


Book ID
127285884
Publisher
Pharmaceutical Press
Year
1969
Tongue
English
Weight
750 KB
Volume
21
Category
Article
ISSN
2042-7158

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Three bituminous coals were extracted with 12 different solvents and one solvent mixture in the presence of ultrasonic energy at ambient temperature. The effects of the extraction on the microporosity of the coals was determined by measuring the adsorption of CO, at 298 and 195 K and of N, at 77 K.