Astec CHIRALDEX B-DP SUPELCO Astec CHIRALDEX B-DP手性氣相色譜柱 毛細(xì)管柱
| 參考價(jià) | ￥ 10515 |
| 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-DP
- 產(chǎn)地 美國(guó)
- 廠商性質(zhì) 代理商
- 更新時(shí)間 2017/2/7 12:21:55
- 訪問(wèn)次數(shù) 1670
聯(lián)系方式：宋釗15336595259 查看聯(lián)系方式
聯(lián)系我們時(shí)請(qǐng)說(shuō)明是化工儀器網(wǎng)上看到的信息，謝謝!
杭州亞萊博儀器有限公司長(zhǎng)期專注于國(guó)內(nèi)外色譜配件、耗材和色譜柱的代理銷售，并努力塑造和推廣alab品牌，alab品牌經(jīng)營(yíng)的產(chǎn)品精挑細(xì)選。 亞萊博公司擁有一個(gè)專業(yè)、年輕、有活力的團(tuán)隊(duì)，從銷售到技術(shù)支持都一直堅(jiān)持精益求精、誠(chéng)實(shí)守信的公司核心企業(yè)文化，用心服務(wù)于廣大客戶。 代理品牌主要有：大連依利特、上海伍豐、蘭化所、中科安泰、上海月旭、蘇州賽分、天津艾杰爾、迪馬、Agilent、Waters、Shimadzu、GL、YMC、Restek、Grace、Alltech、Kromasil、ThermoFisher、Shodex、TOSOH TSKgel、Supelco、Phenomenex、Perkin-Elmer、Hamilton、SGE、Merck、MN等。
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-DP手性氣相色譜柱 毛細(xì)管柱
- CD Type: β (beta)
- Derivative: Dipropionyl
- Temp. Limits: -10 °C to 200 °C (isothermal) or 220 °C (programmed)
Incorporates a phase consisting of a 2,3-di-O-propionyl-6-t-butyl silyl derivative of β-cyclodextrin. This phase exhibits good hydrolytic stability, broad chiral selectivity, and are excellent for aliphatic and aromatic amines. It is also good for many aliphatic and some aromatic esters as well as exhibiting high efficiency and resolution at low retention times for polar racemates.
Features:
- Broad chiral selectivity
- Good hydrolytic stability
- Thermal limit 200/220
- Excellent for aromatic and aliphatic amines
- Good for many aliphatic and some aromatic esters
- High efficiency and resolution at low retention times for polar racemates
Mechanism Observations:
- Mostly surface interactions
- Fused ring structures better selectivity on gamma
- Acids have better selectivity as methyl rather than ethyl esters
Size Selectivity:
Both speed and sample capacity indicate a surface type mechanism for very polar racemates. Large bulky molecules still require a larger surface area than beta provides, therefore, an increase in selectivity is seen on the gamma derivative for fused ring structures. The smaller alpha cavity offered no selectivity while the beta covered the largest range of molecular sizes but the choice between beta and gamma is compound dependent for this phase.
SUPELCO Astec CHIRALDEX B-DP手性氣相色譜柱 毛細(xì)管柱 訂貨信息：
| Product # | Description |
| 78023AST | Astec CHIRALDEX B-DP 毛細(xì)管氣相色譜柱 L × I.D. 30 m × 0.25 mm, df 0.12 μm |
相關(guān)分類
該廠商的其他產(chǎn)品
- SPB-1 SUPELCO SPB-1毛細(xì)管柱 氣相色譜柱
- SPB-5 SUPELCO SPB-5毛細(xì)管柱 氣相色譜柱 5%苯基95%甲基聚硅氧烷
- Supelcowax-10 SUPELCO Supelcowax-10毛細(xì)管柱 氣相色譜柱 PEG-20M鍵合，聚乙二醇
- SPB-50 SUPELCO SPB-50毛細(xì)管柱 氣相色譜柱 50%二苯基,50%二甲基聚硅氧烷
- Astec CHIRALDEX B-DM SUPELCO Astec CHIRALDEX B-DM手性氣相色譜柱 毛細(xì)管柱
- Astec CHIRALDEX A-DA SUPELCO Astec CHIRALDEX A-DA手性氣相色譜柱 毛細(xì)管柱
- Astec CHIRALDEX A-TA SUPELCO Astec CHIRALDEX A-TA手性氣相色譜柱 毛細(xì)管柱
- Astec CHIRALDEX B-PH SUPELCO Astec CHIRALDEX B-PH手性氣相色譜柱 毛細(xì)管柱
采購(gòu)中心
化工儀器網(wǎng)