99在线精品视频,亚洲色图第一页,久久久久国产一级毛片高清板

產(chǎn)品列表PRODUCTS LIST

首頁>產(chǎn)品中心>氣相色譜柱>SUPELCO氣相色譜柱>Astec CHIRALDEX B-PMSUPELCO Astec CHIRALDEX B-PM手性氣相色譜柱毛細(xì)管柱

SUPELCO Astec CHIRALDEX B-PM手性氣相色譜柱毛細(xì)管柱

簡要描述：

SUPELCO Astec CHIRALDEX B-PM手性氣相色譜柱毛細(xì)管柱
Supelco（色譜科）位于美國賓夕法尼亞州，是Sigma-Aldrich集團(tuán)下屬的子品牌，Supelco一直通過提供更新的，更可靠的色譜產(chǎn)品和來幫助色譜工作者來解決問題，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

詳細(xì)介紹

SUPELCO Astec CHIRALDEX B-PM手性氣相色譜柱毛細(xì)管柱

CD Type: β (beta)
Derivative: Permethylated (all available -OH groups methylated)
Temp. Limits: -10 °C to 200 °C (isothermal) or 220 °C (programmed)

Incorporates a phase consisting of a 2,3,6-tri-O-methyl derivative of β-cyclodextrin. This phase exhibits broad chiral selectivity and is good for terpenes and tertiary amines.

The permethylated beta-cyclodextrin is a stationary phase that has indicated a potential to separate a wide variety of racemates. Many of those separations are better resolved on other CHIRALDEX phases based on lower retention, better selectivity and greater efficiency. What the PM does especially well are some hydrocarbons like terpenes, certain underivatized alcohols and diols and some analytes with polar groups like tertiary amines.

Features:

Broad chiral selectivity
Strong inclusion/size selectivity
Beta most selective of cyclodextrins

Mechanism Observations:

Inclusion a dominant mechanism
Highest temperature stability of CHIRALDEX phases along with the DM

Size Selectivity:

Some size selectivity is evident with the permethylated phase. The beta form will cover a broad range of molecule sizes.

SUPELCO Astec CHIRALDEX B-PM手性氣相色譜柱毛細(xì)管柱 訂貨信息：

Product #	Description
76023AST	Astec CHIRALDEX B-PM 毛細(xì)管氣相色譜柱 L × I.D. 30 m × 0.25 mm, d_f 0.12 μm
76025AST	Astec CHIRALDEX B-PM 毛細(xì)管氣相色譜柱 L × I.D. 50 m × 0.25 mm, d_f 0.12 μm

上一篇：Astec CHIRALDEX B-TASUPELCO Astec CHIRALDEX B-TA手性氣相色譜柱毛細(xì)管柱

下一篇：Astec CHIRALDEX B-DPSUPELCO Astec CHIRALDEX B-DP手性氣相色譜柱毛細(xì)管柱

返回列表>>

相關(guān)產(chǎn)品

SPB-1SUPELCO SPB-1毛細(xì)管柱氣相色譜柱 SPB-5SUPELCO SPB-5毛細(xì)管柱氣相色譜柱 5%苯基95%甲基聚硅氧烷 Supelcowax-10SUPELCO Supelcowax-10毛細(xì)管柱氣相色譜柱 PEG-20M鍵合，聚乙二醇 SPB-50SUPELCO 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-DMSUPELCO Astec CHIRALDEX B-DM手性氣相色譜柱毛細(xì)管柱 Astec CHIRALDEX A-DASUPELCO Astec CHIRALDEX A-DA手性氣相色譜柱毛細(xì)管柱 Astec CHIRALDEX A-TASUPELCO Astec CHIRALDEX A-TA手性氣相色譜柱毛細(xì)管柱 Astec CHIRALDEX B-PHSUPELCO Astec CHIRALDEX B-PH手性氣相色譜柱毛細(xì)管柱 Astec CHIRALDEX B-DPSUPELCO Astec CHIRALDEX B-DP手性氣相色譜柱毛細(xì)管柱 Astec CHIRALDEX B-TASUPELCO Astec CHIRALDEX B-TA手性氣相色譜柱毛細(xì)管柱