Matches in SemOpenAlex for { <https://semopenalex.org/work/W2015279743> ?p ?o ?g. }
Showing items 1 to 99 of
99
with 100 items per page.
- W2015279743 endingPage "46" @default.
- W2015279743 startingPage "39" @default.
- W2015279743 abstract "A sensitive and reproducible method for the quantitative determination of cathinone (CTN), norpseudoephedrine (NPE, cathine) and norephedrine (NE) from hair was developed. The compounds were extracted for 4 hours with phosphate buffer pH 2.0, followed by a standard solid phase extraction procedure on a mixed phase column, derivatization with heptafluorobutyric anhydride (HFBA) and GC-MS separation and quantification using D(3)-ephedrine (D(3)-E) and alpha-aminoacetophenone (AAP) as the internal standards. The diastereomers NPE and NE were satisfactorily separated. In the validation, the limits of detection and of quantification were determined at 0.03-0.08 ng/mg and 0.10-0.24 ng/mg, respectively and the interday standard deviation was between 10 and 15%. The method was applied to hair samples of 24 Yemenite khat chewers. All three compounds were detected in 23 of these cases. The concentrations ranged from 0.57 to 23.9 ng/mg for NPE, 0.19-25.0 ng/mg for NE and 0.11-22.7ng/mg for CTN. A highly significant correlation was found between the self-reported data about the khat consumption habits of the volunteers (4-56h chewing per week) and the concentrations of norephedrine and norpseudoephedrine in hair." @default.
- W2015279743 created "2016-06-24" @default.
- W2015279743 creator A5002932387 @default.
- W2015279743 creator A5014931641 @default.
- W2015279743 creator A5017354702 @default.
- W2015279743 creator A5055848202 @default.
- W2015279743 creator A5062864819 @default.
- W2015279743 date "2003-04-01" @default.
- W2015279743 modified "2023-10-08" @default.
- W2015279743 title "Determination of cathinone, cathine and norephedrine in hair of Yemenite khat chewers" @default.
- W2015279743 cites W1651054202 @default.
- W2015279743 cites W1794713994 @default.
- W2015279743 cites W1978265718 @default.
- W2015279743 cites W1987995635 @default.
- W2015279743 cites W1989983471 @default.
- W2015279743 cites W1996170567 @default.
- W2015279743 cites W2005163322 @default.
- W2015279743 cites W2005249121 @default.
- W2015279743 cites W2011982398 @default.
- W2015279743 cites W2050809631 @default.
- W2015279743 cites W2067174726 @default.
- W2015279743 cites W2071397075 @default.
- W2015279743 cites W2118565150 @default.
- W2015279743 cites W2123467997 @default.
- W2015279743 cites W2166672984 @default.
- W2015279743 doi "https://doi.org/10.1016/s0379-0738(03)00048-3" @default.
- W2015279743 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/12742688" @default.
- W2015279743 hasPublicationYear "2003" @default.
- W2015279743 type Work @default.
- W2015279743 sameAs 2015279743 @default.
- W2015279743 citedByCount "50" @default.
- W2015279743 countsByYear W20152797432012 @default.
- W2015279743 countsByYear W20152797432013 @default.
- W2015279743 countsByYear W20152797432014 @default.
- W2015279743 countsByYear W20152797432015 @default.
- W2015279743 countsByYear W20152797432016 @default.
- W2015279743 countsByYear W20152797432017 @default.
- W2015279743 countsByYear W20152797432018 @default.
- W2015279743 countsByYear W20152797432019 @default.
- W2015279743 countsByYear W20152797432020 @default.
- W2015279743 countsByYear W20152797432021 @default.
- W2015279743 countsByYear W20152797432022 @default.
- W2015279743 countsByYear W20152797432023 @default.
- W2015279743 crossrefType "journal-article" @default.
- W2015279743 hasAuthorship W2015279743A5002932387 @default.
- W2015279743 hasAuthorship W2015279743A5014931641 @default.
- W2015279743 hasAuthorship W2015279743A5017354702 @default.
- W2015279743 hasAuthorship W2015279743A5055848202 @default.
- W2015279743 hasAuthorship W2015279743A5062864819 @default.
- W2015279743 hasConcept C126322002 @default.
- W2015279743 hasConcept C179998833 @default.
- W2015279743 hasConcept C185592680 @default.
- W2015279743 hasConcept C2776923573 @default.
- W2015279743 hasConcept C2777193897 @default.
- W2015279743 hasConcept C2778236026 @default.
- W2015279743 hasConcept C2778984665 @default.
- W2015279743 hasConcept C2779177675 @default.
- W2015279743 hasConcept C2781399573 @default.
- W2015279743 hasConcept C43617362 @default.
- W2015279743 hasConcept C513476851 @default.
- W2015279743 hasConcept C71924100 @default.
- W2015279743 hasConcept C96616956 @default.
- W2015279743 hasConcept C98274493 @default.
- W2015279743 hasConceptScore W2015279743C126322002 @default.
- W2015279743 hasConceptScore W2015279743C179998833 @default.
- W2015279743 hasConceptScore W2015279743C185592680 @default.
- W2015279743 hasConceptScore W2015279743C2776923573 @default.
- W2015279743 hasConceptScore W2015279743C2777193897 @default.
- W2015279743 hasConceptScore W2015279743C2778236026 @default.
- W2015279743 hasConceptScore W2015279743C2778984665 @default.
- W2015279743 hasConceptScore W2015279743C2779177675 @default.
- W2015279743 hasConceptScore W2015279743C2781399573 @default.
- W2015279743 hasConceptScore W2015279743C43617362 @default.
- W2015279743 hasConceptScore W2015279743C513476851 @default.
- W2015279743 hasConceptScore W2015279743C71924100 @default.
- W2015279743 hasConceptScore W2015279743C96616956 @default.
- W2015279743 hasConceptScore W2015279743C98274493 @default.
- W2015279743 hasIssue "1-2" @default.
- W2015279743 hasLocation W20152797431 @default.
- W2015279743 hasLocation W20152797432 @default.
- W2015279743 hasOpenAccess W2015279743 @default.
- W2015279743 hasPrimaryLocation W20152797431 @default.
- W2015279743 hasRelatedWork W14543079 @default.
- W2015279743 hasRelatedWork W2015279743 @default.
- W2015279743 hasRelatedWork W2029207341 @default.
- W2015279743 hasRelatedWork W2045089658 @default.
- W2015279743 hasRelatedWork W2045570648 @default.
- W2015279743 hasRelatedWork W2253725920 @default.
- W2015279743 hasRelatedWork W2385484682 @default.
- W2015279743 hasRelatedWork W2768656653 @default.
- W2015279743 hasRelatedWork W4287930204 @default.
- W2015279743 hasRelatedWork W4312959891 @default.
- W2015279743 hasVolume "133" @default.
- W2015279743 isParatext "false" @default.
- W2015279743 isRetracted "false" @default.
- W2015279743 magId "2015279743" @default.
- W2015279743 workType "article" @default.