日韩精品乐乐影院第1页,午夜精品理论片日韩,日韩精品桥本有菜在线观看,日韩精品美女免费看-亚洲国产一成人久久精品,伊人丁香婷婷综合一区二区,久久影院中文字幕,久久大胆视频

產(chǎn)品列表PRODUCTS LIST

首頁(yè)>產(chǎn)品中心>氣相色譜柱>SUPELCO氣相色譜柱>Astec CHIRALDEX G-PNSUPELCO Astec CHIRALDEX G-PN手性氣相色譜柱 毛細(xì)管柱
SUPELCO Astec CHIRALDEX G-PN手性氣相色譜柱 毛細(xì)管柱

簡(jiǎn)要描述:

SUPELCO Astec CHIRALDEX G-PN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

發(fā)郵件給我們:alab17@163.com

分享到: 1
在線留言

SUPELCO Astec CHIRALDEX G-PN手性氣相色譜柱 毛細(xì)管柱
 

  • CD Type: γ (gamma)
  • Derivative: Propionyl
  • Temp. Limits: -10 °C to 200 °C (isothermal) or 220 °C (programmed)

    Astec? CHIRALDEX G-PN incorporates a phase consisting of a 2,6-di-O-pentyl-3-propionyl derivative of γ-cyclodextrin. This phase exhibits high selectivity for lactones and aromatic amines. It is also suitable for epoxide separations. Additionally, the analysis of styrene oxide can be accomplished on this phase (this analyte degrades on the TA phases).

Features: 

  • Suitable for epoxide separations
  • High selectivity for lactones
  • High selectivity for aromatic amines (i.e. amphetamine, methamphetamine)
  • More stable to moisture than the TA phases

Analytes:

Epoxides, aromatic amines (amphetamine/methamphetamine), >C6 alcohols and lactones

 

Mechanism Observations:

   There is little evidence of inclusion formation. Retention increases with increased chain length of analyte. This allows for efficient separation of a series of homologs.

Size Selectivity:

   The γ (gamma) form shows a higher degree of selectivity over the beta form for this phase, and very little selectivity based on cavity size.

 

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

Product #Description
74033ASTAstec? CHIRALDEX? G-PN 毛細(xì)管氣相色譜柱 L × I.D. 30m × 0.25 mm, df 0.12 μm