Science News

Covalent bonding of Schiff base network-1 as a stationary phase for capillary electrochromatography.

A new interesting article has been published in Anal Chim Acta. 2018 Oct 22;1028:113-120. doi: 10.1016/j.aca.2018.04.037. Epub 2018 Apr 18. and titled:

Covalent bonding of Schiff base network-1 as a stationary phase for capillary electrochromatography.

Authors of this article are:

Ye N, Wang X, Liu Q, Hu X.

A summary of the article is shown below:

Covalent organic frameworks (COFs), featuring low densities, high surface areas, and good thermal and chemical stabilities, are gradually attracting interest in the field of analytical chemistry. A type of microporous polymer network material named Schiff base network-1 (SNW-1) was introduced into a capillary column through covalent bonding. The obtained SNW-1-coated capillary column was characterized by thermogravimetric analysis, scanning electron microscopy, Fourier transform infrared spectroscopy, and X-ray diffraction. Then, the SNW-1-coated capillary column was successfully utilized for the open-tubular capillary electrochromatography (OT-CEC) separation of sulfonamides, cephalosporins, amino acids and parabens. The fabricated capillary column showed good separation efficiency (Rs > 1.4), stability and reproducibility (relative standard deviation (RSD) < 5.88%). To the best of our knowledge, this is the first report of a covalent bonding strategy to bond an SNW material to a capillary column for OT-CEC.
Check out the article’s website on Pubmed for more information:



This article is a good source of information and a good way to become familiar with topics such as:

Covalent bonding;Covalent organic frameworks;Open-tubular capillary electrochromatography;Schiff base networks;Stationary phase

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