Method for preparation of composite chromatographic stuffing of polymer carbon nanometer tube

Abstract

The invention provides a method for the preparation of the composite chromatographic stuffing of the polymer carbon nanometer tube, comprising: taking polystyrene-divinylbenzene and carbon nanometer tube as the base material, adopting the dispersion polymerization method to prepare monodispersity linear polystyrene microsphere seed, activating the feed, taking uni-step seed swell method to prepare the polystyrene-divinylbenzene and carbon nanometer tube composite microsphere, extracting to remove the pore-foaming agent to obtain the chromatographic stuffing, packing column by the uniform method. The stuffing prepared by the method has uniform granularity without screening and enhanced hardness compared with the traditional polymer chromatographic stuffing, can bear bigger pressure and is suitable for the new UPLC. The obtained polystyrene-divinylbenzene and carbon nanometer tube liquid phase chromatographic column can be stably used for the ion-pair chromatograph for along time and better performs the simultaneous separation of over ten organic acids.

Description

Preparation method of polymer carbon nanotube composite chromatographic filler technical field The invention relates to a high performance liquid chromatography column and a preparation method thereof, in particular to a preparation method of a polymer carbon nanotube composite high performance liquid chromatography column. Background technique High-performance liquid chromatography is currently one of the most widely used and fastest-growing branches in the field of chromatographic analysis. Because of its high pressure, high speed, high efficiency, and high sensitivity, it is widely used in the environment, medicine, food, energy, materials, and life sciences. It can realize the separation and analysis of various organic and inorganic compounds and biomolecules. As with all chromatographic methods, columns are at the heart of HPLC separations. Common HPLC packings are generally divided into two categories: organic matrix packing and inorganic matrix packing. The most w...

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Problems solved by technology

In order to overcome the disadvantages of poor chemical stability, acid and alkali resistance, non-specific and irreversible adsorption of inorganic matrix fillers, low rigidity of organic matrix fillers, complex pore structure, and easy expansion and contraction, the invention provides a low-cost, manufacturing Preparation method of novel polymer carbon nanotube composite chromatographic filler with simple process, excellent performance and long service life

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