SUPELCO Astec CHIRALDEX G-DM手性气相色谱柱 毛细管柱

CD Type: γ (gamma)Derivative: DimethylTemp. Limits: -10 °C to 200 °C (isothermal) or 220 °C (programmed)

Incorporates a phase consisting of a 2,3-di-O-methyl-6-t-butyl silyl derivative of γ-cyclodextrin. This phase exhibits broad chiral selectivity, resolving aliphatic, olefenic, and aromatic enantiomers. This particular dimethyl phase has been devised to overlap with the applications of both the PM and PH series of columns. To date, it has shown similar selectivities with shorter retention times and greater resolution. It also has exhibited thermal stability equivalent to the PM and is, therefore, the column of choice when elution temperature of the analyte exceeds 200°C.

Features:

Broad chiral selectivityCombines selectivity of PM and PHThermal limit to 200/220 °CShort retention, high resolutionBeta derivative broadly applicableResolves aliphatic, olefenic and aromatic enantiomers

Mechanism Observations:

Size selectivity present but not dominant as in DAFewer structural requirementsCharacteristic temperature selectivity

Size Selectivity:

Size selectivity is evident; therefore, the inclusion mechanism is playing a role in the separation mechanism but does not dominate as it does in the DA series. The beta form as in the PH series covers a very broad range of molecular sizes and, therefore, has the greatest applicability.

SUPELCO Astec CHIRALDEX G-DM手性气相色谱柱 毛细管柱 订货信息：

Product#	Description
77033AST	Astec? CHIRALDEX?G-DM 毛细管气相色谱柱 L × I.D. 30m × 0.25mm, df 0.12μm