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Chemistry and Industry of Forest Products ›› 2024, Vol. 44 ›› Issue (2): 1-8.doi: 10.3969/j.issn.0253-2417.2024.02.001

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Preparation and Properties of Hydrogenated Rosin Ester Bonded Silica Gel Column

Lijuan JIANG, Huiying WU, Lei ZENG, Yuping SU, Fuhou LEI, Hao LI()   

  1. School of Chemistry and Chemical Engineering, Guangxi Minzu University; Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission; Guangxi Key Laboratory of Chemistry and Engineering of Forest Products; Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Nanning 530006, China
  • Received:2023-04-28 Online:2024-04-28 Published:2024-04-23
  • Contact: Hao LI E-mail:lihaospace@163.com

Abstract:

Hydrogenated rosin glycol acrylate(EGHRA) was bonded to the surface of thioglycolated silica gel(SH@SiO2) by click chemical reaction to prepare a novel hydrogenated rosin acrylate ethylene glycol ester bonded silica gel(EGHRA@SiO2) stationary phase. The synthesized stationary phase was characterized by elemental analysis, infrared spectroscopy, thermogravimetric analysis, N2 adsorption-desorption experiments, and particle size distribution tests. The results showed that the EGHRA@SiO2 stationary phase had an increased C content of 10.72 percentage points compared to SiO2, a specific surface area of 270.06 m2/g, an average pore diameter of 6.16 nm, and an average particle size of 10 μm. A 250 mm×30 mm preparation column was filled by homogenization method, and a series of chromatographic evaluations were performed, demonstrating good flowability typical reversed-phase chromatographic characteristic as well as excellent stability and reproducibility of the EGHRA@SiO2 preparation column. Tanaka tests showed that the spatial selectivity of EGHRA@SiO2 column was superior to that of C18 column owing to the phenanthrene-like skeleton of the bonding monomer. Under reversed-phase chromatographic mode, EGHRA@SiO2 preparation column exhibited ideal separation performance for the crude extracts of Taxus bark. Using the screened acetonitrile-water(volume ratio of 47∶53) mobile phase at a flow rate of 15 mL/min, the purity of paclitaxel(PTX), 10-deacetylbaccatin III(10-DAT), 7-xylosyl-10-deacetylbaccatin III(7-xyl-10-DAT) and cephalomannine(CEP) in the crude extract were increased by 91.52, 83.24, 62.99 and 55.85 percentage points after a single purification step of 1.0 mL injection sample, respectively.

Key words: rosin, preparative liquid chromatography, paclitaxel, preparation column

CLC Number: