Astec CHIRALDEX B-DM SUPELCO Astec CHIRALDEX B-DM手性氣相色譜柱 毛細(xì)管柱
| 參考價(jià) | ￥ 9369 |
| 訂貨量 | ≥1 |
- 公司名稱 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-DM
- 產(chǎn)地 美國(guó)
- 廠商性質(zhì) 代理商
- 更新時(shí)間 2017/2/7 12:16:53
- 訪問(wèn)次數(shù) 2192
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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-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 |
| 77022AST | Astec CHIRALDEX? B-DM 毛細(xì)管氣相色譜柱 L × I.D. 20 m × 0.25 mm, df 0.12 μm |
| 77023AST | Astec CHIRALDEX? B-DM 毛細(xì)管氣相色譜柱 L × I.D. 30 m × 0.25 mm, df 0.12 μm |
| 77024AST | Astec CHIRALDEX? B-DM 毛細(xì)管氣相色譜柱 L × I.D. 40 m × 0.25 mm, df 0.12 μm |
| 77025AST | Astec 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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