摘要
以单壁碳纳米管(SWCNTs)为固定相,采用高压匀浆法,制备HPLC色谱柱.测定乙腈相中18种有机化合物在SWCNTs色谱柱上的保留因子,研究SWCNTs与化合物的相互作用.结果表明,有机化合物取代基的种类和个数、杂原子的个数影响乙腈相中有机化合物与SWCNTs的相互作用.采用线性溶解能关系(LSER)定量表征SWCNTs与有机化合物的相互作用,所构建的LSER模型具有较强的拟合能力(R2=0.844)和稳健性(Q2LOO=0.768),发现π-/n-电子对作用和空穴/弥散作用是控制SWCNTs与有机化合物相互作用的主要因素.
Single-walled carbon nanotubes （SWCNTs）, used as the stationary phase materials, were packed into the HPLC column by the downward slurry method. Retention factors of 18 common organic compounds in acetonitrile phase on SWCNTs column were measured and used to investigate the interaction between SWCNTs and organic compounds. The results show that the interactions between SWCNTs and organic compounds in acetonitrile phase are related to the number and types of functional groups and the number of hetero-atoms. The interactions between SWCNTs and organic compounds were characterized quantitatively using the linear solvation energy relationships （LSER）. The obtained LSER model has a goodness of fit （ R2 = 0. 844 ） and robustness 2 （QLOO = 0. 768 ）. The results demonstrate that the interaction with л-/n- electrons and cavity/ dispersion interactions are the main factors that influence the interactions between SWCNTs and organic compounds.
出处
《环境化学》
CAS
CSCD
北大核心
2013年第7期1277-1282,共6页
Environmental Chemistry
基金
国家自然科学基金(21007008)
工业生态与环境工程教育部重点实验室开放课题资助
关键词
碳纳米管
有机化合物
保留因子
线性溶解能关系(LSER)
carbon nanotubes, organic compounds, retention factor, linear solvation energy relationships（ LSER）.
