2013
DOI: 10.1002/elps.201300305
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Evaluation of electroosmotic markers in aqueous and nonaqueous capillary electrophoresis

Abstract: The aim of this study was to evaluate and compare some compounds as EOF markers in aqueous and non-aqueous background electrolytes AIMThe aim of this study was to evaluate and compare some compounds as EOF markers in aqueous and non-aqueous background electrolytes (BGEs). Different electrolyte system as well as BGEs with chiral selectors and micellar additives has been investigated. Short Code 316301It is always necessary to know the electro-osmotic flow (EOF) and the reproducibility of the EOF during method I… Show more

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Cited by 22 publications
(14 citation statements)
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“…Figure illustrates the electropherograms of the three solutes, i.e. resorcinol, phenol, and nitrobenzene, and DMSO, used as the EOF makers . The elution time of DMSO is almost constant irrespective of the concentration of SDS ( C M ), suggesting that DMSO molecules do not permeate into SDS micelles.…”
Section: Resultsmentioning
confidence: 99%
“…Figure illustrates the electropherograms of the three solutes, i.e. resorcinol, phenol, and nitrobenzene, and DMSO, used as the EOF makers . The elution time of DMSO is almost constant irrespective of the concentration of SDS ( C M ), suggesting that DMSO molecules do not permeate into SDS micelles.…”
Section: Resultsmentioning
confidence: 99%
“…A plug of sample was hydrodynamically injected from the inlet end by applying a pressure of 0.5 psi for 10 s. The separation was carried out under 30 kV at 25°C and the samples were maintained at 5°C with the sample storage module of the PA 800 Plus equipment. 4‐(4‐methoxybenzylamino)‐7‐nitro‐2,1,3‐benzoxadiazole, with its neutral charge and fluorescent property , was used as an EOF marker for CE‐LIF at the working excitation wavelength of 488 nm. The marker was dissolved with a DMSO:CH 3 OH (1:1) solution to a concentration of 20 mM, and then further diluted to 2 mM in BGE before use.…”
Section: Methodsmentioning
confidence: 99%
“…[23][24][25][26][27] Thymol was dissolved with the mixture at 2.0 mmol dm -3 to prepare a solute solution. Five microliters of DMSO was also dissolved in 1.5 mL of the solute solution.…”
Section: Methodsmentioning
confidence: 99%