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Reagent gases for G.C.-M.S. analyses

1974; Wiley; Volume: 1; Issue: 2 Linguagem: Inglês

10.1002/bms.1200010203

2376-3876

Barbara L. Jelus, Burnaby Munson, Catherine Fenselau,

Chemical Thermodynamics and Molecular Structure

Several reagent gases and mixed reagent gases for high pressure ion–molecule reaction ionization of samples have been investigated for use in gas chromatography-mass spectrometry analyses. The common g.c. carrier gases and their mixtures with other gases such as isobutane, ammonia, tetramethylsilane, hexafluoroacetone and nitric oxide, were studied. These reagents were used to enhance the molecular ion intensity and to simplify the spectra of steroidal alcohols and the trimethylsilyl ethers of biologically important compounds.