title: Ethylenediaminetetraacetic acid (EDTA) as an auxiliary tool in the electrospray ionization mass spectrometry analysis of native and derivatized beta-cyclodextrins, maltoses, and fructans contaminated with Ca and/or Mg.
abstract: The effect of Ca(2+) (and Mg(2+)) and the disodium salt of ethylenediaminetetraacetic acid (EDTA), a well known Ca(2+) (and Mg(2+)) 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), beta-cyclodextrins (beta-cyclodextrin, methyl-beta-cyclodextrin, heptakis(2,6-di-O-methyl)-beta-cyclodextrin, heptakis(2,3,6-tri-O-methyl)-beta-cyclodextrin, and 2-hydroxypropyl-beta-cyclodextrin) and fructans (sucrose, 1-ketose, nystose, and 1F-fructofuranosylnystose) were used.
authors.affiliation: CIHIDECAR-CONICET, Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina.
authors.forename: Silvana L
authors.initials: SL
authors.lastname: Giudicessi
authors.forename: M Kaniz
authors.initials: MK
authors.lastname: Fatema
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Nonami
authors.forename: Rosa
authors.initials: R
authors.lastname: Erra-Balsells
mesh_terms: D002118:Calcium / Q000737:chemistry*; D004492:Edetic Acid / Q000737:chemistry*; D005630:Fructans / Q000737:chemistry*; D008274:Magnesium / Q000737:chemistry*; D008320:Maltose / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*; D047392:beta-Cyclodextrins / Q000737:chemistry*
chemical_list: D005630:Fructans; D047392:beta-Cyclodextrins; D008320:Maltose; D004492:Edetic Acid; D008274:Magnesium; D002118:Calcium