Chinese Journal of Chromatography ›› 2017, Vol. 35 ›› Issue (5): 473-481.DOI: 10.3724/SP.J.1123.2017.01025

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Synthesis of AAPBA@KCC-1 and its application in the analysis of sialic acid and gangliosides in serum

TIAN Huajun, XUE Yun, CHEN Qiaomei, WANG Yan, YAN Chao   

  1. School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2017-01-20 Online:2017-05-08 Published:2013-08-28
  • Supported by:

    Shanghai Science and Technology Commission Scientific Research Project (Nos. 15142200200, 16142200300); China Postdoctoral Science Fund (No. 2015M581628); Special Fund of Shanghai Introduction of Technology Adsorption and Innovation (No. XC-ZXSJ-02-2016-11).

Abstract:

A new material AAPBA@KCC-1 was synthesized by using 3-acrylamidophenylboronic acid (AAPBA) modified on mesoporous silica KCC-1. First, AAPBA was modified on the surface of KCC-1 by three-step synthesis method. Then, AAPBA@KCC-1 was characterized by scanning electron microscope (SEM), transmission electron microscope (TEM), N2 adsorption-desorption isotherm and X-ray photoelectron spectroscopy (XPS). AAPBA@KCC-1 was used as the dispersive solid-phase extraction (dSPE) adsorbent to extract and enrich sialic acid and ganglioside (GLS) from serum samples. Finally, Fourier transform ion cyclotron resonance mass spectrometry (FT-MS) and ultra performance liquid chromatography-ion mobility spectrometry-quadrupole time of flight mass spectrometry (UPLC-IMS-QTOF MS) were used to evaluated the adsorption ability of AAPBA@KCC-1 to sialic acid and GLS, respectively. The results showed that AAPBA@KCC-1 can effectively adsorb sialic acid and GLS, and can be used for further studies of sialic acid and GLS in biological samples.

Key words: N-acetylneuraminic acid (Neu5Ac), 3-acrylamidophenylboronic acid (AAPBA), dispersive solid-phase extraction (dSPE), ganglioside (GLS), mesoporous silica KCC-1, sialic acid

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