Matches in SemOpenAlex for { <https://semopenalex.org/work/W2004223088> ?p ?o ?g. }
Showing items 1 to 83 of
83
with 100 items per page.
- W2004223088 endingPage "319" @default.
- W2004223088 startingPage "317" @default.
- W2004223088 abstract "The collision-induced dissociation (CID) mass spectra of protonated cocaine and protonated heroin have been measured using a triple quadrupole mass spectrometer at 50 eV ion/neutral collision energy for protonated molecules prepared by different protonating agents. The CID mass spectra of protonated cocaine using H+(H2O)n, H+(NH3)n and H+((CH3)2NH)n as protonating agents are essentially identical and it is concluded that, regardless of the initial site of protonation, the fragmentation reactions occurring on collisional activation are identical. By contrast, protonated heorin prepared with H+(H2O)n and H+(NH3)n as protonating agents show substantial differences. That formed by reaction of H+(H2O)n shows a much more abundant peak corresponding to loss of CH3CO2H. From a comparison with model compounds, and from a consideration of the three-dimensional structure of heroin, it is concluded that with H+(H2O)n as protonating agent significant protonation occurs at the acetate group attached to the alicyclic ring, leading to acetic acid loss on collisional activation, but that reaction of H+(NH3)n leads to protonation at the nitrogen function. The proton attached to nitrogen cannot interact with the acetate group and, consequently, the probability of loss of acetic acid on collislional activation is greatly reduced." @default.
- W2004223088 created "2016-06-24" @default.
- W2004223088 creator A5013186680 @default.
- W2004223088 creator A5049513070 @default.
- W2004223088 creator A5085676861 @default.
- W2004223088 date "1986-06-01" @default.
- W2004223088 modified "2023-10-14" @default.
- W2004223088 title "Effect of method of ion preparation on low-energy collision-induced dissociation mass spectra" @default.
- W2004223088 cites W1977431519 @default.
- W2004223088 cites W2076844522 @default.
- W2004223088 cites W2085536010 @default.
- W2004223088 cites W2091643628 @default.
- W2004223088 cites W2316841379 @default.
- W2004223088 doi "https://doi.org/10.1002/oms.1210210604" @default.
- W2004223088 hasPublicationYear "1986" @default.
- W2004223088 type Work @default.
- W2004223088 sameAs 2004223088 @default.
- W2004223088 citedByCount "18" @default.
- W2004223088 countsByYear W20042230882013 @default.
- W2004223088 countsByYear W20042230882015 @default.
- W2004223088 crossrefType "journal-article" @default.
- W2004223088 hasAuthorship W2004223088A5013186680 @default.
- W2004223088 hasAuthorship W2004223088A5049513070 @default.
- W2004223088 hasAuthorship W2004223088A5085676861 @default.
- W2004223088 hasConcept C102931765 @default.
- W2004223088 hasConcept C111919701 @default.
- W2004223088 hasConcept C113196181 @default.
- W2004223088 hasConcept C145148216 @default.
- W2004223088 hasConcept C147789679 @default.
- W2004223088 hasConcept C155647269 @default.
- W2004223088 hasConcept C162356407 @default.
- W2004223088 hasConcept C176107965 @default.
- W2004223088 hasConcept C178790620 @default.
- W2004223088 hasConcept C185592680 @default.
- W2004223088 hasConcept C191015642 @default.
- W2004223088 hasConcept C2776673659 @default.
- W2004223088 hasConcept C30095370 @default.
- W2004223088 hasConcept C31827203 @default.
- W2004223088 hasConcept C40325409 @default.
- W2004223088 hasConcept C41008148 @default.
- W2004223088 hasConcept C43617362 @default.
- W2004223088 hasConcept C53323650 @default.
- W2004223088 hasConcept C75473681 @default.
- W2004223088 hasConceptScore W2004223088C102931765 @default.
- W2004223088 hasConceptScore W2004223088C111919701 @default.
- W2004223088 hasConceptScore W2004223088C113196181 @default.
- W2004223088 hasConceptScore W2004223088C145148216 @default.
- W2004223088 hasConceptScore W2004223088C147789679 @default.
- W2004223088 hasConceptScore W2004223088C155647269 @default.
- W2004223088 hasConceptScore W2004223088C162356407 @default.
- W2004223088 hasConceptScore W2004223088C176107965 @default.
- W2004223088 hasConceptScore W2004223088C178790620 @default.
- W2004223088 hasConceptScore W2004223088C185592680 @default.
- W2004223088 hasConceptScore W2004223088C191015642 @default.
- W2004223088 hasConceptScore W2004223088C2776673659 @default.
- W2004223088 hasConceptScore W2004223088C30095370 @default.
- W2004223088 hasConceptScore W2004223088C31827203 @default.
- W2004223088 hasConceptScore W2004223088C40325409 @default.
- W2004223088 hasConceptScore W2004223088C41008148 @default.
- W2004223088 hasConceptScore W2004223088C43617362 @default.
- W2004223088 hasConceptScore W2004223088C53323650 @default.
- W2004223088 hasConceptScore W2004223088C75473681 @default.
- W2004223088 hasIssue "6" @default.
- W2004223088 hasLocation W20042230881 @default.
- W2004223088 hasOpenAccess W2004223088 @default.
- W2004223088 hasPrimaryLocation W20042230881 @default.
- W2004223088 hasRelatedWork W1991552421 @default.
- W2004223088 hasRelatedWork W2014994620 @default.
- W2004223088 hasRelatedWork W2020521257 @default.
- W2004223088 hasRelatedWork W2039390463 @default.
- W2004223088 hasRelatedWork W2066220545 @default.
- W2004223088 hasRelatedWork W2078110256 @default.
- W2004223088 hasRelatedWork W2322495408 @default.
- W2004223088 hasRelatedWork W2354647908 @default.
- W2004223088 hasRelatedWork W2365445674 @default.
- W2004223088 hasRelatedWork W2521593253 @default.
- W2004223088 hasVolume "21" @default.
- W2004223088 isParatext "false" @default.
- W2004223088 isRetracted "false" @default.
- W2004223088 magId "2004223088" @default.
- W2004223088 workType "article" @default.