Studies in gas chromatography-chemical ionisation mass spectrometry of some silicate anions

Abstract

Chemical ionisation mass spectrometry of trimethylsilyl derivatives of the anions SiO₄^4–, Si₂O₇^6–, Si₃O₉^6– and Si₃O₁₀^8– has been studied using isobutane as the reagent gas. The protonated molecular ion was observed in all recorded spectra. Also, the chemical ionisation spectra showed many fewer fragment peaks when compared with the corresponding electron impact spectra.