Differentiating 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.