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          杭州亞萊博儀器有限公司>>氣相色譜柱>>SUPELCO氣相色譜柱>>Astec CHIRALDEX B-DMSUPELCO Astec CHIRALDEX B-DM手性氣相色譜柱 毛細(xì)管柱

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

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

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          參考價(jià) 9369
          訂貨量 1
          具體成交價(jià)以合同協(xié)議為準(zhǔn)
          • 型號(hào) Astec CHIRALDEX B-DM
          • 品牌 Supelco/美國(guó)色譜科
          • 廠商性質(zhì) 代理商
          • 所在地 杭州市

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          SUPELCO Astec CHIRALDEX B-DM手性氣相色譜柱 毛細(xì)管柱
          Supelco(色譜科)位于美國(guó)賓夕法尼亞州,是Sigma-Aldrich集團(tuán)下屬的子品牌,Supelco一直通過(guò)提供更新的,更可靠的色譜產(chǎn)品和來(lái)幫助色譜工作者來(lái)解決問(wèn)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

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

          CD Type: β (beta)

          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 β-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. It is considered to be one of the essential columns in a GC column screening protocol.

          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.

          Included in GC Screening Kit 71030AST.

          SUPELCO Astec CHIRALDEX B-DM手性氣相色譜柱 毛細(xì)管柱 訂貨信息:

          Product #Description
          77022ASTAstec CHIRALDEX? B-DM 毛細(xì)管氣相色譜柱 L × I.D. 20 m × 0.25 mm, df 0.12 μm
          77023ASTAstec CHIRALDEX? B-DM 毛細(xì)管氣相色譜柱 L × I.D. 30 m × 0.25 mm, df 0.12 μm
          77024ASTAstec CHIRALDEX? B-DM 毛細(xì)管氣相色譜柱 L × I.D. 40 m × 0.25 mm, df 0.12 μm
          77025ASTAstec CHIRALDEX? B-DM 毛細(xì)管氣相色譜柱 L × I.D. 50 m × 0.25 mm, df 0.12 μm

           

             

             

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