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      首頁>產品中心>氣相色譜柱>SUPELCO氣相色譜柱>Astec CHIRALDEX B-PMSUPELCO Astec CHIRALDEX B-PM手性氣相色譜柱 毛細管柱
      SUPELCO Astec CHIRALDEX B-PM手性氣相色譜柱 毛細管柱

      簡要描述:

      SUPELCO Astec CHIRALDEX B-PM手性氣相色譜柱 毛細管柱
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      SUPELCO Astec CHIRALDEX B-PM手性氣相色譜柱 毛細管柱
       

      • CD Type: β (beta)
      • Derivative: Permethylated (all available -OH groups methylated)
      • Temp. Limits: -10 °C to 200 °C (isothermal) or 220 °C (programmed)

          Incorporates a phase consisting of a 2,3,6-tri-O-methyl derivative of β-cyclodextrin. This phase exhibits broad chiral selectivity and is good for terpenes and tertiary amines.

          The permethylated beta-cyclodextrin is a stationary phase that has indicated a potential to separate a wide variety of racemates. Many of those separations are better resolved on other CHIRALDEX phases based on lower retention, better selectivity and greater efficiency. What the PM does especially well are some hydrocarbons like terpenes, certain underivatized alcohols and diols and some analytes with polar groups like tertiary amines.

      Features: 

      • Broad chiral selectivity
      • Strong inclusion/size selectivity
      • Beta most selective of cyclodextrins

       

      Mechanism Observations:

      • Inclusion a dominant mechanism
      • Highest temperature stability of CHIRALDEX phases along with the DM

      Size Selectivity: 

          Some size selectivity is evident with the permethylated phase. The beta form will cover a broad range of molecule sizes.

       

      SUPELCO Astec CHIRALDEX B-PM手性氣相色譜柱 毛細管柱 訂貨信息:

      Product #Description
      76023ASTAstec CHIRALDEX B-PM 毛細管氣相色譜柱 L × I.D. 30 m × 0.25 mm, df 0.12 μm
      76025ASTAstec CHIRALDEX B-PM 毛細管氣相色譜柱 L × I.D. 50 m × 0.25 mm, df 0.12 μm

       

         

         

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