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SUPELCO Astec CHIRALDEX G-DP手性氣相色譜柱 毛細管柱Supelco（色譜科）位于美國賓夕法尼亞州，是Sigma-Aldrich集團下屬的子品牌，Supelco一直通過提供更新的，更可靠的色譜產品和來幫助色譜工作者來解決問題，其涉及的領域和行業(yè)有環(huán)境、食品、飲料、政府、醫(yī)藥、化工等
SUPELCO Astec CHIRALDEX G-DP手性氣相色譜柱 毛細管柱
Incorporates a phase consisting of a 2,3-di-O-propionyl-6-t-butyl silyl derivative of γ-cyclodextrin. This phase exhibits good hydrolytic stability, broad chiral selectivity, and are excellent for aliphatic and aromatic amines. It is also good for many aliphatic and some aromatic esters as well as exhibiting high efficiency and resolution at low retention times for polar racemates.
Features:
Mechanism Observations:
Size Selectivity:
Both speed and sample capacity indicate a surface type mechanism for very polar racemates. Large bulky molecules still require a larger surface area than beta provides, therefore, an increase in selectivity is seen on the gamma derivative for fused ring structures. The smaller alpha cavity offered no selectivity while the beta covered the largest range of molecular sizes but the choice between beta and gamma is compound dependent for this phase.
SUPELCO Astec CHIRALDEX G-DP手性氣相色譜柱 毛細管柱 訂貨信息：
| Product # | Description |
| 78033AST | Astec CHIRALDEX G-DP 毛細管氣相色譜柱 L × I.D. 30m × 0.25 mm, df 0.12 μm |
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