Octadecylamine and glucose-coderived hydrophobic carbon dots-modified porous silica for chromatographic separation  

作　　者：Jia Chen Ning Yuan Danni Jiang Qian Lei Bei Liu Weiyang Tang Kyung Ho Row Hongdeng Qiu 

机构地区：[1]CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China [2]Laboratory on Pollution Monitoring and Control,College of Chemistry and Chemical Engineering,Xinjiang Normal University,Urumqi 830054,China [3]School of Chemistry and Chemical Engineering,Cannan Normal University,Canzhou 341000,China [4]Department of Chemistry and Chemical Engineering,Education and Research Center for Smart Energy and Materials,Inha University,Incheon 402-701,Republic of Korea [5]College of Chemistry,Zhengzhou University,Zhengzhou 450001,China

出　　处：《Chinese Chemical Letters》2021年第11期3398-3401,共4页中国化学快报（英文版）

基　　金：financial support from Science and Technology Project of Science and Technology Bureau of Chengguan District in Lanzhou City(No.2020JSCX0033);National Natural Science Foundation of China(No.21822407);Youth Innovation Pro-motion Association CAS;the National Research Foundation of Korea(NRF)grant funded by the Korean government(MSIT:Ministry of Science and ICT)(No.NRF-2019R1A2C1010032).

摘　　要：A hydrophobic carbon dots(Glc-OCDs)derived from octadecylamine and glucose were successfully synthesized for the first time and then grafted onto the porous silica surface by the“Nano-on-Micro”strategy,which was served as a new stationary phase(Sil-Glc-OCDs)for reversed-phase liquid chromatography.The structure of this stationary phase was carefully verified by laser scanning confocal microscope,Fourier transform infrared spectrometry,elemental analysis,contact angle measurement,etc.Several analytes including seven polycyclic aromatic hydrocarbons,eight alkylbenzenes,eight phenols and seven sulfonamides can be well separated on this stationary phase.Better separation performance for certain analytes over commercial C_(18) column was obtained.Interestingly,this stationary phase exhibited excellent chromatographic selectivity in the separation of the isomers of tert‑butylbenzene,sec‑butylbenzene,isobutylbenzene and n-butylbenzene.In addition,this new Sil-Glc-OCDs column was also applied for detection of calycosin-7-glucoside,ononin,calycosin,formononetin,genistein and isorhamnetin in the extract of Radix Astragali,which were found that the concentration was 0.15 g/L,0.088 g/L,0.14 g/L,0.086 g/L,0.18 g/L and 0.29 g/L,respectively.We believe that this CDs-grafted silica materials are promising for chromatographic separation.

关 键 词：Carbon dots Stationary phase Chromatographic separation Liquid chromatography Deep eutectic solvents 

分 类 号：O652.63[理学—分析化学] O613.72[理学—化学]