1991
DOI: 10.1016/s0021-9673(01)88914-7
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Determination of absolute mobilities, pK values and separation numbers by capillary zone electrophoresis

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Cited by 184 publications
(81 citation statements)
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“…Intermediate mobility is a function of the dissociation equilibrium of the base [16,34,35]. The electrophoretic mobility of the base is expressed by [36] …”
Section: Theorymentioning
confidence: 99%
See 1 more Smart Citation
“…Intermediate mobility is a function of the dissociation equilibrium of the base [16,34,35]. The electrophoretic mobility of the base is expressed by [36] …”
Section: Theorymentioning
confidence: 99%
“…The dissociation constant can also be used to theoretically predict the behavior of solutes in HPLC [6,7] and electromigration methods [8,9]. Capillary electrophoresis (CE) [10][11][12][13][14][15][16] has been introduced as a new micro-analytical technique for convenient and precise aqueous dissociation constant determination because of its advantages over other commonly used methods such as potentiometry [17][18][19], liquid chromatography (LC) [20][21][22], spectrophotometry [23][24][25][26], and nuclear magnetic resonance spectroscopy (NMR) [27,28]. CE relies on the principle that the solute exhibits an electrophoretic mobility continuum versus pH, which allows calculations independent of solute purity, since impurities can be effectively separated from the solutes of interest.…”
mentioning
confidence: 99%
“…check quantitative aspects of separations using a coupled CZE-MECC system, calibration graphs of peak area NXWS injected concentration (5-s pressure injection) were set up for the aminoglycoside antibiotics dihydrostreptomycin and sisomycin and the neutral components paracetamol and dapsone in the same background electrolyte. The qualitative abilities of this separation were checked by measuring the effective and pseudo-effective mobilities of the separate components [15], and comparing them with the effective and pseudo-effective mobilities in the mixture. In Fig.…”
Section: Determination Of Aminoglycosides By Cze With Indirect Uvmentioning
confidence: 99%
“…As described previously [9], the effective mobility meff can be calculated from the mobility of the electroosmotic flow (EOF), mEoF, and the apparent mobility, mapp, of the component according to…”
Section: Determination Of Effective Mobilitiesmentioning
confidence: 99%
“…If the effective mobility of a component is known for two different electrolyte systems at different pH values, at which the component shows a different degree of dissociation, both its pK, value and its mobility at infinite dilution can be cajlculated [9] I II I II I II I II I II I II I II I II I II I II I II I II I II I Table III it can be concluded that the calculated pKvalues and mobilities at infinite dilution obtained from the effective mobilities of both capillaries with the same background electrolyte systems agree.…”
Section: Calculation Of Pk Values and Rnobili:ies At Infinite Dilutionmentioning
confidence: 99%