Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Ludmila Křivánková"'
Publikováno v:
Journal of Chromatography A. 1213:25-30
Determination of pK values of weak bases and acids by CZE has already attracted big attention in current practice and proved to offer the advantage of being applicable for mixtures of analytes. The method is based on the measurement of mobility curve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17cf80ef28a457ee673b5f706a2af47e
https://doi.org/10.1016/j.chroma.2008.08.101
https://doi.org/10.1016/j.chroma.2008.08.101
Autor:
Michaela Nováková, Ludmila Křivánková
Publikováno v:
ELECTROPHORESIS. 29:1694-1700
The determination of ethyl glucuronide (EtG), a marker of recent alcohol consumption, in human serum by hyphenation of capillary ITP (CITP) and CZE is reported. For CITP step, 1 x 10(-2) M hydrochloric acid adjusted with epsilon-aminocaproic acid (EA
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::440a3834188772248c5095a3d6cc8a4f
https://doi.org/10.1002/elps.200700663
https://doi.org/10.1002/elps.200700663
Publikováno v:
Chromatographia. 67:63-68
A method for isotachophoretic determination of potassium and ammonium cations in fertilizers and silage was developed. A capillary of 0.4 mm i.d. and 100 mm effective length made of fluorinated ethylene–propylene copolymer was filled with an electr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a476a448c44f097ea6c94d1059ec871
https://doi.org/10.1365/s10337-007-0497-y
https://doi.org/10.1365/s10337-007-0497-y
Publikováno v:
ELECTROPHORESIS. 28:3777-3785
A method has been developed for the determination of iodide in mineral water, seawater, cooking salt, serum, and urine based on hyphenation of capillary ITP and zone electrophoresis. A commercially available instrumentation for capillary ITP with col
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d9e0bc59088e397195ca968a8123b91
https://doi.org/10.1002/elps.200700189
https://doi.org/10.1002/elps.200700189
Publikováno v:
ELECTROPHORESIS. 27:4859-4871
Determination of impurities in ionic liquids (ILs) remains a difficult task. In this work, the hyphenation of isotachophoretic (ITP) preconcentration to zone electrophoresis (ZE) has been explored for the trace analysis of the cationic impurities Na(
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c012c08a26237b554882a11e98740d0
https://doi.org/10.1002/elps.200600316
https://doi.org/10.1002/elps.200600316
Autor:
Anna Lišková, Ludmila Křivánková
Publikováno v:
ELECTROPHORESIS. 26:4429-4439
Accurate determination of pK(a) values is important for proper characterization of newly synthesized molecules. In this work we have used CZE for determination of pK(a) values of new compounds prepared from intermediates, 2, 3 and 4-(2-chloro-acetyla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::270e38d62005d7cc17de2d431e54a48d
https://doi.org/10.1002/elps.200500433
https://doi.org/10.1002/elps.200500433
Publikováno v:
Electrophoresis. 21:2797-2808
It is a frequent phenomenon in practice that a sample contains bulk levels of more than one coionic component that affect the stacking behavior of minor analytes and in this way also the sensitivity of the method. Here, attention is paid to stacking
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7dad367963661a35e4427e46d20cc0e5
https://doi.org/10.1002/1522-2683(20000801)21:14<2797::aid-elps2797>3.0.co
https://doi.org/10.1002/1522-2683(20000801)21:14<2797::aid-elps2797>3.0.co
Publikováno v:
Electrophoresis. 21:627-632
The behavior of two different fractions of the electrically conducting polymer polyaniline (PANI) was studied in order to characterize them using fast, simple, and cheap methods of capillary zone electrophoresis. In contradistinction to the expectati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::abf3c0e04eb33a7698eee1a5bde04ce5
https://doi.org/10.1002/(sici)1522-2683(20000201)21:3<627::aid-elps627>3.0.co
https://doi.org/10.1002/(sici)1522-2683(20000201)21:3<627::aid-elps627>3.0.co
Publikováno v:
Journal of Chromatography A. 838:55-70
Conditions for existence of transient isotachophoresis (ITP) in zone electrophoresis are quite common. Transient ITP can either be induced by the composition of the sample or by the composition of the electrolyte system or result from the first step
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08a2d27c5db303032f89ff8f0bfb4a3d
https://doi.org/10.1016/s0021-9673(99)00169-7
https://doi.org/10.1016/s0021-9673(99)00169-7
Autor:
Ludmila Křivánková, Petr Boček
Publikováno v:
Electrophoresis. 19:1064-1074
This review evaluates the literature on continuous free flow electrophoresis, published during the last four years. Its aim is to serve not only experts in the field but also newcomers, and, therefore, it also briefly describes the principles of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ed0098421f88fc978850968e9c52fdd
https://doi.org/10.1002/elps.1150190704
https://doi.org/10.1002/elps.1150190704