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首页> 外文期刊>Journal of Applied Polymer Science >Application of polymeric high-internal-phase-emulsion-coated stationary-phase columns in open-tubular capillary electrochromatography
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Application of polymeric high-internal-phase-emulsion-coated stationary-phase columns in open-tubular capillary electrochromatography

机译：聚合物高内相乳化固定相色谱柱在开管毛细管电色谱中的应用

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The application of polymeric high-internal-phase emulsion (polyHIPE) capillary coatings for open-tubular analytical separation columns was demonstrated in this study for the first time. Multiple polystyrene-co-divinylbenzene polyHIPE layers with an average total depth of 1.73 mu m were coated onto internal capillary surfaces to create open-tubular columns (20 cm coating and 32.5 cm effective length). With these columns for open-tubular capillary electrochromatography, ethylbenzene and pentylbenzene were separated. Although the overall separation capacity of the produced columns was low, the polyHIPE coatings improved the analyte peak shape, decreased the total run time, and improved the peak symmetries relative to comparable unmodified open-tubular columns. In addition, the use of these novel polyHIPE columns led to the use of 30% less organic modifier. These columns have the potential to improve the shelf life of open-tubular columns typically used in capillary electrochromatography. (C) 2016 Wiley Periodicals, Inc.
机译：这项研究首次证明了聚合物高内相乳液（polyHIPE）毛细管涂层在开管分析分离柱中的应用。将平均总深度为1.73微米的多层聚苯乙烯-共二乙烯基苯polyHIPE层覆盖在内毛细管表面上，以形成空心管柱（涂层20厘米，有效长度32.5厘米）。用这些用于开管毛细管电色谱的色谱柱，分离出乙苯和戊苯。尽管生产的色谱柱的总体分离能力很低，但与可比较的未改性开管色谱柱相比，polyHIPE涂层改善了分析物的峰形，缩短了总运行时间，并改善了色谱峰的对称性。另外，使用这些新型的polyHIPE色谱柱可减少使用30％的有机改性剂。这些色谱柱有可能提高通常用于毛细管电色谱的空心管色谱柱的保存期限。 （C）2016威利期刊公司

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