Ethylenediaminetetraacetic acid (EDTA) as an auxiliary tool in the electrospray ionization mass spectrometry analysis of native and derivatized B-cyclodextrins, maltoses and fructans contaminated with Ca and/or Mg

GIUDICESSI, S. L.; FATEMA, K., M.; NONAMI, H.; ERRA-BALSELLS, R.

JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY

ELSEVIER SCIENCE INC

Lugar: Amsterdam; Año: 2010 vol. 21 p. 1526 - 1529

1044-0305

The effect of Ca2
(and Mg2
) and the disodium salt of ethylenediaminetetraacetic acid (EDTA), a well known Ca2
(and Mg2
) chelating agent, on the volatilization/ionization of carbohydrates by using electrospray ionization mass spectrometry has been studied. Model compounds such as maltoses (maltose to maltoheptaose),
-cyclodextrins (
-cyclodextrin, methyl-
-cyclodextrin, heptakis(2,6-di-O-methyl)-
-cyclodextrin, heptakis(2,3,6-tri-O-methyl)-
- cyclodextrin, and 2-hydroxypropyl-
-cyclodextrin) and fructans (sucrose, 1-ketose, nystose, and 1F-fructofuranosylnystose) were used.