Electron ionization-tandem mass spectrometry of glycosphingolipids. I: The identiftcation of compound-specific sequence ions in the collision-induced dissociation spectra of the immonium ions of two isomeric hexaglycosylceramides

Behaviour of salts of very strong proton

Behaviour of salts of very strong proton-sponge bases in the gas phase: Extended proximity effects and maintenance of the hydrogen bridge under soft ionization. An electron impact and liquid secondary ion mass spectrometric/collision-induced dissociation tandem mass spectrometric study

✍ Marina Rentzea; Fredy Kühn; Heinz A. Staab 📂 Article 📅 1993 🏛 John Wiley and Sons 🌐 English ⚖ 331 KB

The liquid secondary ion mass spectrometry and electron impact ionization fragmentation pathways of 1,9bis(dimethylamino)-2,8-dimethoxy-dibenzofuran (l), a new proton-sponge base with increased steric compression (buttressing) and much higher basicity (pK, = 14.3), and of its monoprotonated (2) and