Separation of cresol from mares' urine

Details Separation of cresol from mares' urine Separation of cresol from mares' urine

2007-05-22

2007-05-22

Badio, Barbara P. (Department: 1617)

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Cyclopentanohydrophenanthrene ring system doai

Reexamination Certificate

active

10400936

ABSTRACT:
A method of separating cresol from mares' urine by pervaporation using pore-free polymeric silicone membranes in which starting urine solutions containing high-quality and -quantity conjugated estrogens with a reduced or substantially removed cresol content are provided which are advantageously suitable for obtaining natural mixtures of conjugated estrogens from pregnant mares' urine.

REFERENCES:
patent: 4806245 (1989-02-01), Boddeker
patent: 5464540 (1995-11-01), Friesen et al.
patent: 5723454 (1998-03-01), Ban et al.
patent: 5814624 (1998-09-01), Ban et al.
patent: 69404958 (1997-12-01), None
International Search Report, Dec. 27, 2002.
C.H.L. Shackleton, et al., “Use of Sep-pak® Cartridges for Urinary Steroid Extraction: Chromatographic Analysis” Clinica Chimica Acta, vol. 107, 1980, pp. 231-243.
Risto Heikkinen, et al., “Reversed-Phase C18Cartridge for Extraction of Estrogens from Urine and Plasma” Clin. Chem. vol. 27, No. 7, 1981, pp. 1186-1189.
H. Leon Bradlow, “Extraction of Steroid Conjugates with a Neutral Resin” Institute for Steroid Research, Montefiore Hospital and Medical Center, New York, NY, Dec. 4, 1967.

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