Počet záznamů: 1
Automated microgradient system for capillary electrochromatography
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SYSNO ASEP 0162453 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Ostatní články Název Automated microgradient system for capillary electrochromatography Tvůrce(i) Kahle, Vladislav (UIACH-O) RID
Vázlerová, M. (CZ)
Welsch, T. (DE)Zdroj.dok. Journal of Chromatography A. - : Elsevier - ISSN 0021-9673
Roč. 990, 1-2 (2003), s. 3-9Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova Electrochromatography ; automation ; gradient elution Vědní obor RIV CB - Analytická chemie, separace CEP GA203/02/1447 GA ČR - Grantová agentura ČR IBS4031201 GA AV ČR - Akademie věd CEZ AV0Z4031919 - UIACH-O Anotace A microprocessor controlled gradient elution system suitable for capillary electrochromatography has been developed and tested. It is based on a liquid handling device described previously which is capable of liquid transport with both low and high fluid dispersion. The low dispersion region formed by stainless steel needle 250 microm I.D. serves for sample injection, while the high dispersion region, created by steep extension of tube diameter, is used for continuous mobile phase gradient generation. A homologous series of seven alkylphenones was electrochromatographycally separated on a monolithic polyacrylic column under gradient conditions. An S-shaped acetonitrile gradient (3070) was applied. A high reproducibility of retention times (RSD about 0.1) was obtained, indicating accuracy of automated gradient operations. Pracoviště Ústav analytické chemie Kontakt Iveta Drobníková, drobnikova@iach.cz, Tel.: 532 290 234 Rok sběru 2004
Počet záznamů: 1