ISSN:
0951-4198
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Physics
Notes:
Under the conditions of chemical ionization (CI) mass spectrometry, protonated pyridine [PyrH]+ and partially methylated alditol acetates (PMAAs) form very stable adducts. The CI mass spectra exhibit, exclusively, peaks due to quasimolecular [M + PyrH]+ adduct ions. The methylation analysis of complex carbohydrates can be enhanced by using the pyridine CI mass spectra to complement electron impact mass spectra and gas chromatography data. As a result, the sensitivity as well as the accuracy of quantitative analysis of PMMA components is increased.
Additional Material:
11 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/rcm.1290090924
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