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Isobutane chemicals

R. Saferstein, J.M. Chao J.J. Manura, Isobutane Chemical Ionization Mass Spectro-graphic Examination of Explosives , JAssoc of... [Pg.790]

M. T. Gilbert and C. J. W. Brooks, Characterization of diastereo-meric and enantiomeric ephedrines by gas chromatography combined with electron-impact mass spectrometry and isobutane chemical-ionization mass spectrometry, Biomed. Mass Spectrom., 4 226(1977). [Pg.411]

The detection of chiral recognition with a mass spectrometer was reported first in 1977 by Fales and Wright.357 Their study showed that the chirality of dialkytartrates (T) strongly influences the stability of their diastereomeric proton-bound dimers, generated by isobutane chemical ionization (CIMS) of their racemic mixtures.358,359 In order to differentiate the protonated species of the homochiral self-dimers... [Pg.196]

The analysis of peptides and proteins has played a role in the development of LC-MS from the early 1980s. Yu et al. [1] reported the analysis of a Y-acetyl-Y,0,5 -permethylated octapeptide derived from the C-terminus of glucagon as early as 1984, using a moving-belt interface and isobutane chemical ionization. Stroh et al. [2] applied FAB and the moving-belt interface to the stracture elucidation of antibiotic leucinostatin peptides and a tryptic digest of antiamoebin 1. [Pg.443]

D Agostino PA and Provost LR (1988). Capillary column isobutane chemical ionization mass spectrometry of mustard and related compounds. Biomed Environ Mass Spectrom, 15, 553-564. [Pg.120]

Isobutane chemical ionization mass spectra of the 8-crown ether acetals (54) gave rise to prominent (M- -l)+ ions, which undergo elimination of an aldehyde or oxirane as shown in Scheme 3 <83OMS(18)402>. [Pg.678]

Milne, G.W.A. Fales, H.M. Axenrod, T. Identification of Dangerous Drugs by Isobutane Chemical Ionization Mass Spectrometry. Anal. Chem. 1970, 42, 1815-1820. [Pg.377]

McCamish, M. Allan, A.R. Roboz, J. Poly(Dimethylsiloxane) as Mass Reference for Accurate Mass Determination in Isobutane Chemical Ionization Mass Spectrometry. Rapid Commun. Mass Spectrom. 1987,1, 124-125. [Pg.377]

See other pages where Isobutane chemicals is mentioned: [Pg.180]    [Pg.12]    [Pg.44]    [Pg.149]    [Pg.153]    [Pg.149]    [Pg.153]    [Pg.196]    [Pg.280]    [Pg.133]    [Pg.45]    [Pg.726]    [Pg.273]    [Pg.82]    [Pg.291]    [Pg.677]    [Pg.35]   
See also in sourсe #XX -- [ Pg.180 ]



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Isobutane

Isobutanes

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