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SUPELCO Astec CHIRALDEX G-DM手性氣相色譜柱毛細(xì)管柱

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公司名稱杭州亞萊博儀器有限公司
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更新時(shí)間2021/11/18 12:09:33
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SUPELCO Astec CHIRALDEX G-DM手性氣相色譜柱毛細(xì)管柱Supelco（色譜科）位于美國賓夕法尼亞州，是Sigma-Aldrich集團(tuán)下屬的子品牌，Supelco一直通過提供更新的，更可靠的色譜產(chǎn)品和來幫助色譜工作者來解決問題，其涉及的領(lǐng)域和行業(yè)有環(huán)境、食品、飲料、政府、醫(yī)藥、化工等

SUPELCO Astec CHIRALDEX G-DM手性氣相色譜柱毛細(xì)管柱產(chǎn)品信息

SUPELCO Astec CHIRALDEX G-DM手性氣相色譜柱毛細(xì)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.

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