biostudies-literatureUnknown5(3-4)Tsunoi SDiscrimination of aromatic positional isomers of methylbuphedrones and methoxybuphedrones was successfully achieved. Meta isomers were discriminated by chemical ionization-tandem mass spectrometry (CI-MS/MS) using acetonitrile as a reagent gas. Furthermore, all the aromatic positional isomers were discriminated by CI-MS/MS using vinyltrimethylsilane as a reagent gas.Analytical science advances2300064https://www.ebi.ac.uk/biostudies/studies/S-EPMC11142392biostudies-literatureDifferentiating the aromatic positional isomers of methylbuphedrones and methoxybuphedrones via chemical ionization-mass spectrometry.PMC11142392Hisasue TYasuhisa TSuzuki IShibata ITsunoi SfalseDifferentiating the aromatic positional isomers of methylbuphedrones and methoxybuphedrones via chemical ionization-mass spectrometry.Discrimination of aromatic positional isomers of methylbuphedrones and methoxybuphedrones was successfully achieved. Meta isomers were discriminated by chemical ionization-tandem mass spectrometry (CI-MS/MS) using acetonitrile as a reagent gas. Furthermore, all the aromatic positional isomers were discriminated by CI-MS/MS using vinyltrimethylsilane as a reagent gas.2024-01-01T00:00:00Z2024 Apr2026-03-17T16:12:30.582Z2025-08-18T09:53:09.903ZS-EPMC111423923882702310.1002/ansa.202300064