Performance and selectivity of lower-rim substituted calix[4]arene as a stationary phase for capillary gas chromatography

Tao Sun; Bin Li; Xiaomin Shuai; Yujie Chen; WeiWei Li; Zhiqiang Cai; Xiaoguang Qiao; Shaoqiang Hu; Lufang Ma

doi:10.1039/c9ra03004b

Performance and selectivity of lower-rim substituted calix[4]arene as a stationary phase for capillary gas chromatography

RSC Adv. 2019 Jul 8;9(37):21207-21214. doi: 10.1039/c9ra03004b. eCollection 2019 Jul 5.

Authors

Tao Sun¹, Bin Li², Xiaomin Shuai³, Yujie Chen¹, WeiWei Li¹, Zhiqiang Cai³, Xiaoguang Qiao^{1

4}, Shaoqiang Hu¹, Lufang Ma¹

Affiliations

¹ College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University Luoyang 471934 P. R. China suntao2226@163.com.
² Hebei Key Laboratory of Heterocyclic Compounds, Handan University Handan 056005 China.
³ School of Petrochemical Engineering, Shenyang University of Technology Liaoyang 111003 Liaoning P. R. China kahongzqc@163.com.
⁴ Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Material Science and Engineering, Zhengzhou University Zhengzhou 450001 P. R. China.

Abstract

This work presents the investigation of p-tert-butyl(tetradecyloxy)calix[4]arene (C4A-C10) as stationary phase for capillary gas chromatographic (GC) separations. The statically-coated C4A-C10 capillary column showed weak polarity and column efficiency of 2566 plates per m determined by n-dodecane at 120 °C. Impressively, the C4A-C10 column exhibited extremely high resolving capability for a wide range of analytes from nonpolar to polar, including n-alkanes, esters, ketones, aldehydes, alcohols and bromoalkanes. Most importantly, the C4A-C10 column exhibited an excellent separation performance for positional, structural and cis-/trans-isomers. Among them, the column displayed advantageous resolving capability over the commercial polysiloxane stationary phase for aromatic amine isomers. Moreover, the C4A-C10 column showed good column repeatability with RSD values below 0.06% for run-to-run, 0.12-0.27% for day-to-day and 2.8-5.3% for column-to-column.