无孔单分散亲水性硼酸基亲合色谱固定相的制备及其在几种抗生素分离中的应用

Preparation of Non-porous Monodisperse Hydrophilic Boric Acid-affinity Chromatographic Stationary Phase and Its Application in Separation of Some Antibiotics

  • 摘要: 以自制3.0 μm无孔单分散亲水性交联聚甲基丙烯酸环氧丙酯树脂P(GMA/EDMA)为载体,间氨基苯硼酸为配体制备了一种新型高效硼酸基亲合色谱填料.考察了抗生素:去甲万古霉素、阿米卡星、异帕米星和庆大霉素,与硼酸配体的特异性作用,以及流动相中盐离子浓度和pH对抗生素保留的影响.结果表明:表面带有邻羟基的抗生素和硼酸基具有特异性亲合作用,且抗体结构中具有不同的邻羟基数目表现出不同的保留能力.用所合成的硼酸基亲合色谱柱纯化去甲万古霉素,结合反相色谱检测其纯化液,证明所制备的硼酸基亲和色谱柱具备纯化去甲万古霉的能力.

     

    Abstract: A novel boric acid-affinity chromatographic packings was prepared by using 3.0 μm non-porous monodisperse poly(glycidylmethacrylate-co-ethylenedimethacrylate) beads (P(GMA/EDMA) as matrix and M-aminophenylboric acid (APBA) as ligand. The specific effects of antibiotics, such as norvancomycin, amikacin, isopamicin and gentamicin, with boric acid ligands, as well as the effects of salt ion concentration and pH in mobile phase on the retention of antibiotics were investigated. The results indicated that antibiotics with o-hydroxyl groups and borate groups had affinity specificity, and antibiotics with the different number of o-hydroxyl groups in structure showed different retention ability. Furthermore, the norvancomycin was purified by boric acid affinity column and the purified solution was determined by reversed-phase column, proving that the developed boric acid affinity chromatographic column in this study was capable of purifying norvancomycin.

     

/

返回文章
返回