期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1218, 期 11, 页码 1544-1547出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chroma.2011.01.042
关键词
Capillary liquid chromatography; Methacrylic acid; Polystyrene-based monolithic stationary phase; Small organic molecules
资金
- Grant Agency of Charles University [710, 78808, SW 261204]
- Czech Ministry of Education, Youths and Sports [MSM 0021620857]
- Academy of Sciences of the Czech Republic [KAN 200520804]
- Norwegian Financial Mechanism project [CZ 0116]
A very simple and readily performed method is described for the preparation of poly(styrene-divinylbenzene-methacrylic acid) monolithic columns for capillary liquid chromatography. The effect of the methacrylic acid content on the morphological and chromatographic properties has been investigated. Methacrylic acid is shown to be essential for isocratic separations of small organic analytes by capillary liquid chromatography. Column efficiencies of about 28,000 theoretical plates/m have been obtained for all the test compounds. The batch-to-batch and run-to-run repeatability of the retention times is better than 1.5%. (C) 2011 Elsevier B.V. All rights reserved.
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