Matches in SemOpenAlex for { <https://semopenalex.org/work/W2062342010> ?p ?o ?g. }
Showing items 1 to 97 of
97
with 100 items per page.
- W2062342010 endingPage "625" @default.
- W2062342010 startingPage "616" @default.
- W2062342010 abstract "Samples of potassium perfluorooctanesulfonate (PFOSK) from three suppliers were analyzed by LC-ESI-MS/MS for purity and by LC-ESI-MS for the percentage of linear isomer present. Our data indicated that the purity ranged from 80% to 98% and the percentages of linear isomer from 67% to 79%. The proportion of branched isomers present in the samples was also estimated using (19)F NMR. These results agreed quite closely with those found by LC-ESI-MS indicating that there is essentially no difference in overall SIM response factor for the branched isomers vs. that of the linear isomer. Several further observations relevant to the use of standards when analyzing for PFOS were encountered during this study. It appears unlikely that matrix effects attributable to the cation (sodium or potassium) present in PFOSNa or PFOSK internal standards is an issue. In seeking potential matrix effects, it was found that the chromatography was improved substantially when the standard was injected as a solution in 80:20 methanol/water rather than 100% methanol. Notably, in concert with the improvement in chromatography, an increase of about 10% in response was observed. In some closely related studies, when (18)O(2) mass-labeled perfluorohexanesulfonate was used as an internal standard, the actual and theoretical concentration ratios matched closely those for related native sulfonates as long as they did not co-elute. However, when they did co-elute, the peak intensities of the native species were enhanced by about 5%, while those of the labeled compound were suppressed by a similar amount. If this effect were not taken into account, the concentration of the native would be inflated by 10%." @default.
- W2062342010 created "2016-06-24" @default.
- W2062342010 creator A5016802828 @default.
- W2062342010 creator A5048030381 @default.
- W2062342010 creator A5054364658 @default.
- W2062342010 creator A5066531506 @default.
- W2062342010 creator A5077464677 @default.
- W2062342010 creator A5088008150 @default.
- W2062342010 date "2008-01-01" @default.
- W2062342010 modified "2023-10-05" @default.
- W2062342010 title "Some issues relating to the use of perfluorooctanesulfonate (PFOS) samples as reference standards" @default.
- W2062342010 cites W1876440262 @default.
- W2062342010 cites W1917491239 @default.
- W2062342010 cites W1936217412 @default.
- W2062342010 cites W1964931739 @default.
- W2062342010 cites W1972258539 @default.
- W2062342010 cites W1976770880 @default.
- W2062342010 cites W1978216187 @default.
- W2062342010 cites W1991864047 @default.
- W2062342010 cites W1995048806 @default.
- W2062342010 cites W2011618923 @default.
- W2062342010 cites W2023483872 @default.
- W2062342010 cites W2023879224 @default.
- W2062342010 cites W2036594646 @default.
- W2062342010 cites W2040415614 @default.
- W2062342010 cites W2042880426 @default.
- W2062342010 cites W2047646987 @default.
- W2062342010 cites W2049354575 @default.
- W2062342010 cites W2057310849 @default.
- W2062342010 cites W2063424103 @default.
- W2062342010 cites W2149735365 @default.
- W2062342010 cites W2159407167 @default.
- W2062342010 cites W2160227041 @default.
- W2062342010 cites W4230956599 @default.
- W2062342010 doi "https://doi.org/10.1016/j.chemosphere.2007.06.087" @default.
- W2062342010 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/17720222" @default.
- W2062342010 hasPublicationYear "2008" @default.
- W2062342010 type Work @default.
- W2062342010 sameAs 2062342010 @default.
- W2062342010 citedByCount "51" @default.
- W2062342010 countsByYear W20623420102012 @default.
- W2062342010 countsByYear W20623420102013 @default.
- W2062342010 countsByYear W20623420102014 @default.
- W2062342010 countsByYear W20623420102015 @default.
- W2062342010 countsByYear W20623420102016 @default.
- W2062342010 countsByYear W20623420102017 @default.
- W2062342010 countsByYear W20623420102018 @default.
- W2062342010 countsByYear W20623420102019 @default.
- W2062342010 countsByYear W20623420102020 @default.
- W2062342010 countsByYear W20623420102021 @default.
- W2062342010 countsByYear W20623420102022 @default.
- W2062342010 countsByYear W20623420102023 @default.
- W2062342010 crossrefType "journal-article" @default.
- W2062342010 hasAuthorship W2062342010A5016802828 @default.
- W2062342010 hasAuthorship W2062342010A5048030381 @default.
- W2062342010 hasAuthorship W2062342010A5054364658 @default.
- W2062342010 hasAuthorship W2062342010A5066531506 @default.
- W2062342010 hasAuthorship W2062342010A5077464677 @default.
- W2062342010 hasAuthorship W2062342010A5088008150 @default.
- W2062342010 hasConcept C106487976 @default.
- W2062342010 hasConcept C178790620 @default.
- W2062342010 hasConcept C185592680 @default.
- W2062342010 hasConcept C2779607525 @default.
- W2062342010 hasConcept C43617362 @default.
- W2062342010 hasConcept C517785266 @default.
- W2062342010 hasConcept C537181965 @default.
- W2062342010 hasConcept C73826308 @default.
- W2062342010 hasConceptScore W2062342010C106487976 @default.
- W2062342010 hasConceptScore W2062342010C178790620 @default.
- W2062342010 hasConceptScore W2062342010C185592680 @default.
- W2062342010 hasConceptScore W2062342010C2779607525 @default.
- W2062342010 hasConceptScore W2062342010C43617362 @default.
- W2062342010 hasConceptScore W2062342010C517785266 @default.
- W2062342010 hasConceptScore W2062342010C537181965 @default.
- W2062342010 hasConceptScore W2062342010C73826308 @default.
- W2062342010 hasIssue "4" @default.
- W2062342010 hasLocation W20623420101 @default.
- W2062342010 hasLocation W20623420102 @default.
- W2062342010 hasOpenAccess W2062342010 @default.
- W2062342010 hasPrimaryLocation W20623420101 @default.
- W2062342010 hasRelatedWork W1520443578 @default.
- W2062342010 hasRelatedWork W1964099257 @default.
- W2062342010 hasRelatedWork W1978674438 @default.
- W2062342010 hasRelatedWork W2036586415 @default.
- W2062342010 hasRelatedWork W2050325968 @default.
- W2062342010 hasRelatedWork W2112214832 @default.
- W2062342010 hasRelatedWork W2314245732 @default.
- W2062342010 hasRelatedWork W2473215621 @default.
- W2062342010 hasRelatedWork W3043087619 @default.
- W2062342010 hasRelatedWork W2121404800 @default.
- W2062342010 hasVolume "70" @default.
- W2062342010 isParatext "false" @default.
- W2062342010 isRetracted "false" @default.
- W2062342010 magId "2062342010" @default.
- W2062342010 workType "article" @default.