Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1980-11-20
pubmed:abstractText
Portions of pregnancy and midcycle urines were submitted to hot acid hydrolysis, extracted with benzene/ethyl acetate and the extracts washed with ascorbic acid buffer. From the remaining organic phase the catecholestrogens were removed with borate buffer and further purified on Sephadex LH-20 columns. After derivatisation 4-hydroxyestrone was separated from the isomeric 2-hydroxyestrone peak were identical with that of authentic 4-hydroxyestrone. After treatment of the extracts with sodium borohydride 4-hydroxyestradiol-17 beta was identified by GC-MS. By the addition of trace amounts of tritiated 4-hydroxyestrone a recovery of 40% was calculated. On the basis of this recovery and the peak heights of the gas chromatograms an excretion of 4 microgram (midcycle) and 40 microgram (pregnancy) of 4-hydroxyestrone/24 h was estimated.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0039-128X
pubmed:author
pubmed:issnType
Print
pubmed:volume
36
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
73-9
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1980
pubmed:articleTitle
4-hydroxyestrone, isolation and identification in human urine.
pubmed:publicationType
Journal Article