T. Mawhinney
1983
Citations
1
Influential Citations
37
Citations
Journal
Journal of Chromatography A
Abstract
The tert.-butyldimethylsilyl derivatives of the oxyanions carbonate, sulfite, sulfate, selenite, selenate, molybdenate, borate, phosphite, phosphate, vanadate, arsenite, arsenate and pyrophosphate were prepared by reacting the free acid and the ammonium salt form of the oxyanions with N-methyl-N-(tert.-butyldimethylsilyl)trifluoroacetamide in N,N-dimethylformamide. All derivatives were amenable to gas chromatographic analysis and, except for molybdenate, were stable for over a week at room temperature and over six months at 4°C. Each tert.-butyldimethylsilylated oxyanion produced an easily interpretable mass spectrum dominated by a unique M — 57 fragment ion.