Poznan University of Technology, Institute of Chemical Technology and Engineering, pl. M. Skłodowskiej-Curie 2, 60-965 Poznań, Poland.
J Chromatogr A. 2013 May 3;1288:101-4. doi: 10.1016/j.chroma.2013.02.080. Epub 2013 Mar 4.
Sorbents that potentially can be used for separation of the products of biotechnological conversion of glycerol were examined. Properties of Zeolite 5A, resins: Amberlite, Diaion and their samples impregnated with an aqueous solutions of 1,2,3-propanetriol, 1,3-propanediol, 2,3-butanediol, acetic acid, succinic acid and model fermentation broth were investigated. Because surface properties will probably depend on the ambient humidity the IGC experiments were carried out under different conditions of relative humidity RH=0, 40 and 80%. Activity of the sorbents surface was expressed by the value of the dispersive component of the free surface energy. Inverse gas chromatography was also used to express acid-base properties of materials described by KA and KD parameters. The changes in the activity of investigated sorbents significantly varied depending on the type of impregnating agent. Moreover, the obtained results demonstrate that humidity can strongly influence, in some cases, the dispersive component of the free surface energy and the ability to specific interactions (KA and KD).
考察了潜在可用于分离甘油生物技术转化产物的吸附剂。研究了沸石 5A、树脂：Amberlite、Diaion 及其用 1,2,3-丙三醇、1,3-丙二醇、2,3-丁二醇、乙酸、琥珀酸水溶液和模型发酵液浸渍的样品的性质。由于表面性质可能取决于环境湿度，因此在相对湿度 RH=0、40 和 80%的不同条件下进行了 IGC 实验。通过自由表面能的分散分量的值来表示吸附剂表面的活性。反气相色谱法还用于通过 KA 和 KD 参数来表示材料的酸碱性质。所研究的吸附剂的活性变化取决于浸渍剂的类型。此外，所得结果表明，湿度在某些情况下可以强烈影响自由表面能的分散分量和特定相互作用的能力（KA 和 KD）。
