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Citation: LIU Junwei, SUN Yan, YU Wenhao, WANG Chaowei, LI Zhenxing, SUN Yu'an, ZHANG Shusheng, ZHU Yan. Preparation and characterization of polyaniline/graphene-coated anion-exchange chromatographic stationary phase[J]. Chinese Journal of Chromatography, ;2020, 38(4): 458-463. doi: 10.3724/SP.J.1123.2019.08034 shu

Preparation and characterization of polyaniline/graphene-coated anion-exchange chromatographic stationary phase

LIU Junwei ^1,, ,
SUN Yan ¹ ,
YU Wenhao ¹ ,
WANG Chaowei ¹ ,
LI Zhenxing ¹ ,
SUN Yu'an ¹ ,
ZHANG Shusheng ² ,
ZHU Yan ^3,,

1.
Department of Applied Chemistry, Zhengzhou University of Light Industry, Zhengzhou 450002, China;
2.
Center of Advanced Analysis and Gene Sequencing, Zhengzhou University, Zhengzhou 450001, China;
3.
Department of Chemistry, Zhejiang University, Hangzhou 310028, China

Corresponding author: LIU Junwei, ZHU Yan,
Received Date: 27 August 2019

Fund Project: Doctoral Fund of Zhengzhou University of Light Industry (No. 2017BSJJ037).

A polyaniline/graphene (PANI/G) composite was selected as the coating material to prepare a coated anion-exchange chromatographic stationary phase. First, aniline and graphene were used to prepare the PANI/G composite, which was coated onto the surface of poly(styrene-divinylbenzene) (PS-DVB) microspheres by physical absorption. Then, a series of anion-exchange stationary phases with different exchange capacities were obtained by quaternization using the nitrogen atom of polyaniline as the reactive site. The stationary phase was characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), and elemental analysis (EA). The results revealed that PANI/G was successfully coated onto the surface of PS-DVB and quaternized. The efficiency of the self-fabricated chromatographic column was evaluated by separating conventional anions and organic acids. The PANI/G-coated PS-DVB anion-exchange chromatographic column that was quaternized eight times showed good separation performance for conventional anions and organic acids.
- polyaniline/graphene (PANI/G),
- poly(styrene-divinylbenzene) (PS-DVB),
- quaternization,
- anion-exchange,
- stationary phase
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