Studies on steroids
Journal of Chromatography B: Biomedical Sciences and Applications, ISSN: 0378-4347, Vol: 574, Issue: 1, Page: 1-7
1992
- 10Citations
- 11Captures
- 3Mentions
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
A method for the determination of 4- and 6-hydroxylated bile acids with a vicinal glycol moiety in human urine by gas chromatography—mass spectrometry with negative ion chemical ionization detection is described. The 4β-hydroxylated bile acids labelled with 18 O and 2 H were prepared as internal standards by the exchange reaction of the carbonyl group on the steroid nucleus with H 2 18 O, followed by metal deuteride reduction. Bile acids in urine were extracted with a Sep-Pak C 18 cartridge and, after solvolysis and hydrolysis of the conjugated forms, transformed into pentafluorobenzyl ester diethylhydrogensilyl ether diethylsilylene derivatives. Subsequent resolution into individual 4- and 6-hydroxylated bile acids was carried out on a cross-linked fused-silica capillary column; a characteristic carboxylate anion, [M − PFB] −, was used to monitor each bile acid in the negative ion mode. The newly developed method was applied to the separation and determination of 4- and 6-hydroxylated bile acids in a urine specimen from a newborn infant.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/0378434792800914; http://dx.doi.org/10.1016/0378-4347(92)80091-4; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0026518563&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/0378434792800914; http://dx.doi.org/10.1016/0378-4347%2892%2980091-4; https://dx.doi.org/10.1016/0378-4347%2892%2980091-4
Elsevier BV
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