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.
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.
Giudicessi
Silvana L
SL
CIHIDECAR-CONICET, Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina.
Fatema
M Kaniz
MK
Nonami
Hiroshi
H
Erra-Balsells
Rosa
R
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*
D005630:Fructans; D047392:beta-Cyclodextrins; D008320:Maltose; D004492:Edetic Acid; D008274:Magnesium; D002118:Calcium