星型低聚噻吩功能化的并四苯材料作为毛细管气相色谱的固定相
Star-shaped oligothiophene-functionalized truxene materials as stationary phases for capillary gas chromatography.
作者信息
Zhang Qiaochu, Qi Meiling, Wang Jinliang
机构信息
Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials and School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China.
Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials and School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China.
出版信息
J Chromatogr A. 2017 Nov 24;1525:152-160. doi: 10.1016/j.chroma.2017.10.028. Epub 2017 Oct 10.
This work reports oligothiophene-functionalized truxene-based stationary phases (TTT, TDT and TFT) with a unique star-shaped π-conjugated architecture for gas chromatographic (GC) separations. They exhibited medium polarity and column efficiency of 3340-3760 plates/m determined by naphthalene at 120°C. Among them, the TTT stationary phase displayed advantageous resolving capability over the TDT and TFT phases for a wide ranging analytes from apolar to polar, particularly for structural and positional isomers, including alcohols, phenols, halogenated and alkylated benzenes and naphthalenes. Moreover, the TTT column exhibited good thermal stability and repeatability with relative standard deviation (RSD) values of 0.02%-0.07% for run-to-run, 0.10%-0.53% for day-to-day and 2.1%-2.9% for column-to-column, respectively. In addition, it was applied for the determination of isomer impurities in real samples, proving its good potential for practical GC analysis.
这项工作报道了具有独特星形π共轭结构的低聚噻吩功能化并四苯基固定相（TTT、TDT和TFT）用于气相色谱（GC）分离。它们表现出中等极性，在120°C下由萘测定的柱效为3340 - 3760塔板数/米。其中，TTT固定相对从非极性到极性的多种分析物，特别是对结构和位置异构体，包括醇类、酚类、卤代苯和烷基苯以及萘，显示出比TDT和TFT固定相更具优势的分离能力。此外，TTT柱表现出良好的热稳定性和重复性，运行间的相对标准偏差（RSD）值为0.02% - 0.07%，日间为0.10% - 0.53%，柱间为2.1% - 2.9%。此外，它被应用于实际样品中异构体杂质的测定，证明了其在实际GC分析中的良好潜力。
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