ISSN:
1612-1112
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary A new method for quantitating urinary estrogen by gasliquid chromatography is described. A minimum of 50 cm3 of urine sample is required for the preliminary enzyme hydrolysis. The hydrolysate is extracted with a mixture of ether and ethyl acetate followed by multiple washes or rotary evaporation to eliminate interfering emulsions. The estrogen fractions are silylated, concentrated and chromatographed on a 3% OV-225 column. This method combines the advantages of several procedures while eliminating many of the adverse reactions previously encountered. The method is sufficiently sensitive to quantitate estrogens in the nanogram range.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02269004
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