Gas Chromatography of Common Anions as Their Tert-Butyldimethylsilyl Derivatives
- 1 January 1983
- journal article
- separations
- Published by Taylor & Francis in Analytical Letters
- Vol. 16 (2) , 159-166
- https://doi.org/10.1080/00032718308065158
Abstract
The tert-butyldimethylsilyl (tBDMS) derivatives of borate, sulfate, phosphite, arsenite, vanadate, phosphate and arsenate were formed by reaction of these anions, as their ammonium salts, with N-methyl-N-(tert-butyldimethylsilyl) trifluoroacetamide (MTBSTFA) in N,N-dimethylformamide. Under dry nitrogen, derivatives were stable for over one week at room temperature and all derivatives were amenable to gas chromatographic analysis. Analysis of the tBDMS derivatives of sulfate and phosphate by mass spectrometry indicates their molecular formulas to be (tBDMS)2SO4 and (tBDMS)3PO4, respectively. Each tBDMS-anion derivatives yielded a mass spectrum possessing a unique mass minus 57 fragment ion that served as the base peak.Keywords
This publication has 6 references indexed in Scilit:
- N-Methyl-N-(tert-butyldimethylsilyl)trifluoroacetamide and related N-tert-butyldimethylsilyl amides as protective silyl donorsThe Journal of Organic Chemistry, 1982
- Sterically crowded trialkylsilyl derivatives for chromatography and mass spectrometry of biologically-important compoundsAnalytical Chemistry, 1978
- Gas-chromatographic analysis of aqueous phosphate by reaction gas chromatographyAnalytical Chemistry, 1972
- Extraction-derivatization-gas chromatographic determination of trace phosphate in aqueous mediaAnalytical Chemistry, 1971
- Gas chromatography and mass spectrometry of the trimethylsilyl derivatives of inorganic anionsAnalytical Chemistry, 1971
- Solvent extraction and gas chromatography of the rare earth mixed-ligand complexes of hexafluoroacetylacetone and tributyl phosphateAnalytical Chemistry, 1970