Abstract
The chromatographic properties of capillary columns prepared using functionalized poly(1- trimethylsilyl-1-propyne) (PTMSP) are evaluated and compared with the performance of a commercial column with divinylbenzene polymer sorbent. The loading capacity of a PTMSP column with dimensions of 30 m × 0.53 mm × 0.8 μm is shown to be about 2.5 times higher than that of a divinylbenzene polymer column with a diameter of 0.32 mm and a film thickness of 10 μm. The increased value of the background current for PTMSP columns at 220°C is explained by the presence of non-polar bulky substituents in the polymer chain. Differences in the order of elution are found for the following pairs of compounds: acetylene-ethylene; ethane–water; butene-1–isobutane; and sulfur dioxide–carbonyl sulfide. On a column with the functionalized PTMC, analysis of a mixture composition close to natural gas is found to be complete within 27 min.
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Original Russian Text © E.Yu. Yakovleva, Yu.V. Patrushev, Z.P. Pai, 2018, published in Zhurnal Fizicheskoi Khimii, 2018, Vol. 92, No. 5, pp. 824–830.
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Yakovleva, E.Y., Patrushev, Y.V. & Pai, Z.P. Capillary Columns with a Sorbent Based on Functionalized Poly(1-Trimethylsilyl-1-Propyne) for the Elution Analysis of Natural Gas. Russ. J. Phys. Chem. 92, 1018–1024 (2018). https://doi.org/10.1134/S0036024418050357
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DOI: https://doi.org/10.1134/S0036024418050357