Publication
Mass spectrometric analysis of epimeric 3α/3β functionalized steroids.
| dc.contributor.author | Ramos, Susana Sofia | |
| dc.contributor.author | Ramalho, Luís | |
| dc.contributor.author | Costa, Mafalda | |
| dc.contributor.author | Teixeira, Adriano | |
| dc.contributor.author | Almeida, Paulo | |
| dc.contributor.author | Costa, Maria do Céu | |
| dc.date.accessioned | 2010-06-22T14:29:45Z | |
| dc.date.available | 2010-06-22T14:29:45Z | |
| dc.date.issued | 2007 | |
| dc.description.abstract | Tandem mass spectrometry (MS/MS) using an atmospheric pressure chemical ionization (APCI) source in positive mode (+) reveals different intensity ratios of two fragment peaks of the epimeric cholestane derivatives synthesized from 3{460}- or 3β-cholestanol. The investigation of the fragmentation pattern obtained from their full scan and/or collision induced dissociation (CID) spectra in the case of the cholestane skeleton together with the respective electronic ionization (EI) spectra supports a distinction of the epimers. | pt |
| dc.identifier.citation | Ramos, Susana Sofia; Ramalho, Luís; Costa, Mafalda; Teixeira, Adriano; Costa, Maria do Céu; Almeida, Paulo. Mass spectrometric analysis of epimeric 3α/3β functionalized steroids. In: ARKIVOC, 2007, vol. xiv, p. 163-171 | pt |
| dc.identifier.uri | http://hdl.handle.net/10400.9/695 | |
| dc.language.iso | eng | pt |
| dc.subject | APCI | pt |
| dc.subject | EI | pt |
| dc.subject | Tandem MS | pt |
| dc.subject | Epimer discrimination | pt |
| dc.title | Mass spectrometric analysis of epimeric 3α/3β functionalized steroids. | pt |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 171 | pt |
| oaire.citation.startPage | 163 | pt |
| oaire.citation.title | Arkivoc | pt |
| rcaap.rights | openAccess | pt |
| rcaap.type | article | pt |