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簡要描述： Astec CHIRALDEX B-DP SUPELCO 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

詳細(xì)介紹

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

CD Type: β (beta)
Derivative: Diprpinyl
Tep. Liits: -10 °C t 200 °C (istheral) r 220 °C (prgraed)

Incrprates a phase cnsisting f a 2,3-di-O-prpinyl-6-t-butyl silyl derivative f β-cycldextrin. This phase exhibits gd hydrlytic stability, brad chiral selectivity, and are excellent fr aliphatic and aratic aines. It is als gd fr any aliphatic and se aratic esters as well as exhibiting high efficiency and reslutin at lw retentin ties fr plar raceates.

Features:

Brad chiral selectivity
Gd hydrlytic stability
Theral liit 200/220
Excellent fr aratic and aliphatic aines
Gd fr any aliphatic and se aratic esters
High efficiency and reslutin at lw retentin ties fr plar raceates

Mechanis Observatins:

Mstly surface interactins
Fused ring structures better selectivity n gaa
Acids have better selectivity as ethyl rather than ethyl esters

Size Selectivity:

Bth speed and saple capacity indicate a surface type echanis fr very plar raceates. Large bulky lecules still require a larger surface area than beta prvides, therefre, an increase in selectivity is seen n the gaa derivative fr fused ring structures. The saller alpha cavity ffered n selectivity while the beta cvered the largest range f lecular sizes but the chice between beta and gaa is cpund dependent fr this phase.

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

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