-10-200 °C temperature (isothermal) -10-220 °C temperature (programmed)
Valeur bêta
500
df
0.12 μm
Technique(s)
gas chromatography (GC): suitable
L × D.I.
30 m × 0.25 mm
Groupe de la matrice active
non-bonded; 2,6-di-O-pentyl-3-methoxy derivative of β-cyclodextrin phase
Application(s)
agriculture chemicals and industrial polymers cleaning products clinical cosmetics environmental flavors and fragrances food and beverages forensics and toxicology life science and biopharma personal care pharmaceutical (small molecule)
CHIRALDEX B-DA requires that analytes possess a minimum of two ring structures, one of which is unsaturated (aromatic) α, β to the stereogenic center. Examples include fluoxetine, methylphenidate and chloropheniramine. Inclusion complexation or proper fit between the analyte and cyclodextrin cavity is the dominant enantioselectivity mechanism for the DA series. There must be an includable group α or β to the stereogenic center for chiral recognition. Since CHIRALDEX DA columns most effectively separate multi-ring analytes, analysis temperatures are often higher than 150°C. Enantioselectivity has been observed at temperatures >200°C (fluoxetine acetyl derivative).
Résistance chim./phys.
Temp. Limits:
-10 °C to 200 °C isothermal, 220 °C programmed
Autres remarques
We offer a variety of chromatography accessories including analytical syringes
Informations légales
Astec is a registered trademark of Merck KGaA, Darmstadt, Germany
CHIRALDEX is a trademark of Sigma-Aldrich Co. LLC
Faites votre choix parmi les versions les plus récentes :
Structurally informative response patterns of some monoterpenoids found in volatile oils to gas chromatography on two commercial dipentylated cyclodextrin phases
Betts, T.J.
Journal of Chromatography A, 639 (2), 366-370 (1993)
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