Preparation of a porous polymer monolithic column with an ionic liquid as a porogen and its applications for the separation of small molecules in high performance liquid chromatography

2015 ◽  
Vol 7 (18) ◽  
pp. 7879-7888 ◽  
Author(s):  
Jiafei Wang ◽  
Xiaoya Jiang ◽  
Hang Zhang ◽  
Sha Liu ◽  
Ligai Bai ◽  
...  

A monolith based on an ionic liquid as a porogen was prepared to enhance the column efficiency of small molecule separation in HPLC.

The Analyst ◽  
2014 ◽  
Vol 139 (18) ◽  
pp. 4453-4457 ◽  
Author(s):  
Naoki Itoh ◽  
Akira Sano ◽  
Tomofumi Santa ◽  
Masaru Kato

The bimodal structure of the monolithic column is promising for the simultaneous separation, because nanoparticles and small molecules were separated by micrometer- and nanometer-sized pores, respectively.


2015 ◽  
Vol 7 (1) ◽  
pp. 218-225 ◽  
Author(s):  
Junxiao Qin ◽  
Ligai Bai ◽  
Jiafei Wang ◽  
Yamin Ma ◽  
Haiyan Liu ◽  
...  

Ionic liquid was used to prepare a monolith. The resulting porous monolith had a high specific surface area and was used as the stationary phase for HPLC, showing excellent performance to separate small molecules and protein.


Author(s):  
Stevin Carolius Angga ◽  
Dias Septiana ◽  
Suci Amalia ◽  
Warsito Warsito ◽  
Elvina Dhiaul Iftitah ◽  
...  

An enantiomer molecule consisted of the chiral atom has different structure conformations, which exhibit different activities as well. Yet, its separation considerably difficult since ordinary separation could not separate both molecules. One of the popular enantioseparations which are often used was using organic polymer monolithic column modified by ethylenediamine-β-cyclodextrin (EDA-β-CD) as the enantioseparations site. The aim of this research was to produce chiral stationary phase column for enantioseparations of (±)-citronellal. It was conducted by preparing monolithic column using monomer glycidyl methacrylate (GMA), trimethylolpropane trimethacrylate (TMPTMA) as crosslinker, 1-propanol, 1,4-butanediol, and water as pore-forming agents (porogens) in the presence of α,α'-azoisobutyronitrile (AIBN) as radical initiator inside polyetheretherketone (PEEK) tubing. It was then modified with EDA-β-CD synthesized from β-CD. Finally, it was installed as a high-performance liquid chromatography column. The result shows the produced chiral stationary phase column could separate (±)-citronellal at a retention time of 44.76 and 45.71 min.


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