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

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

• CD Type: α (alpha)
• Derivative: Dialkyl
• Tep. Liits: -10 °C t 200 °C (istheral) r 220 °C (prgraed)

Incrprates a phase cnsisting f a 2,6-di-O-pentyl-3-ethxy derivative f β-cycldextrin. This phase is gd fr separatins f hetercyclic aines. It has different selectivity fr ther phases and ften shws reversal in elutin fr the PH phases.

The dipentylated derivatives f alpha, beta and gaa cycldextrin shw prnunced selectivity differences based n the size, shape and functinality f the analyte. Strng evidence exists fr inclusin cplexatin which is the basic driving echanis and, therefre, reslutin is affected by saple lad. The beta-cycldextrin fr has the bradest applicability. Saple vlues under 1 icrliter at cncentratins f 5 g/L are typical with the 100/1 split rati.

Features:

• Hydrphbic surface
• Prnunced selectivity differences based n analyte size, shape and functinality
• Separates hetercyclic aines
• Different selectivity fr ther cycldextrin derivatives
• Often shws reversal in elutin rder fr PH series

Selectivity pririties:

• Alpha…Siple epxides, cyclic ethers, linear substituted alkanes
• Beta…Hetercyclic aines
• Gaa…Naphthyl analgs

Mechanis Observatins:

• Strnger inclusin fr DA and, therefre, size selectivity is iprtant.
• Critical teperature dependence fr enantiselectivity. Abve this teperature n separatin ccurs.

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

訂貨信息：

Astec CHIRALDEX B-DA

17。。ｃｎ