Astec CHIRALDEX G-DM SUPELCO 手性气相色谱离子交换柱 连接管管柱
 

• CD Type: γ (gamma)
• Derivative: Dimethyl
• Temp. 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 selectivity
• Combines selectivity of PM and PH
• Thermal limit to 200/220 °C
• Short retention, high resolution
• Beta derivative broadly applicable
• Resolves aliphatic, olefenic and aromatic enantiomers

Mechanism Observations:

• Size selectivity present but not dominant as in DA
• Fewer structural requirements
• Characteristic 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.  

Astec CHIRALDEX G-DM SUPELCO 手性气质联用液相色谱柱 毛细管柱

进货的信息：

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

 

Astec CHIRALDEX G-DM

订制：

成都屹利专业医疗仪器局限集团公司  www.elab17。。ｃｎ   

南京屹利科学性实验室设备是有限的机构(合肥办）