Astec CHIRALDEX B-PH SUPELCO Astec CHIRALDEX B-PH手性氣相色譜柱 毛細(xì)管柱
| 參考價(jià) | ￥ 11146 |
| 訂貨量 | ≥1 |
- 公司名稱(chēng) 杭州亞萊博儀器有限公司
- 品牌 Supelco/美國(guó)色譜科
- 型號(hào) Astec CHIRALDEX B-PH
- 產(chǎn)地 美國(guó)
- 廠商性質(zhì) 代理商
- 更新時(shí)間 2017/2/7 12:20:52
- 訪問(wèn)次數(shù) 1314
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液相色譜儀 氣相色譜儀 液相色譜柱 毛細(xì)管柱 色譜配件 電子天平 分光光度計(jì) 酸度計(jì) 電導(dǎo)率儀 溶氧儀等等
SUPELCO Astec CHIRALDEX B-PH手性氣相色譜柱 毛細(xì)管柱
- CD Type: β (beta)
- Derivative: S-Hydroxypropyl
- Temp. Limits: -10 °C to 200 °C (isothermal) or 220 °C (programmed)
Incorporates a phase consisting of a (S)-2-hydroxy propyl methyl ether derivative of β-cyclodextrin. This phase separates a wide variety of enantiomers, resolving aliphatic, olefinic, and aromatic enantiomers. It is a good general purpose chiral column.
The first general purpose derivative involved substitution of the cyclodextrin hydroxyl groups with pure "S" hydroxypropyl followed by permethylation. The surface is hydrophilic in character and the influence of size and shape selectivity is greatly reduced but not absent. The beta-cyclodextrin* form has the broadest applicability.
Features:
- Hydrophilic surface
- Beta is more selective than alpha
- Separates a wide variety of enantiomers
- Resolves aliphatic, olefinic and aromatic enantiomers
- Good general purpose chiral column
Mechanism Observations:
- Reduced influence of inclusion complexing
- Less size selectivity for PH as opposed to DA
- Temperature range for enantiomeric selectivity: Isothermal to 200°C; temperature program to 220°C
- Characteristic temperature selectivity on a given column for a given class of compounds
- Fewer functional requirements for analyte than LC
SUPELCO Astec CHIRALDEX B-PH手性氣相色譜柱 毛細(xì)管柱 訂貨信息：
| Product # | Description |
| 71023AST | Astec CHIRALDEX B-PH 毛細(xì)管氣相色譜柱 L × I.D. 30 m × 0.25 mm, df 0.12 μm |
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