@article {942,
	title = {Continuous electrophoretic purification of individual analytes from multicomponent mixtures},
	journal = {Analytical Chemistry},
	volume = {76},
	number = {8},
	year = {2004},
	note = {ISI Document Delivery No.: 816FWTimes Cited: 10Cited Reference Count: 36},
	month = {Apr},
	pages = {2298-2305},
	type = {Article},
	abstract = {Individual analytes can be isolated from multicomponent mixtures and collected in the outlet vial by carrying out electrophoretic purification through a capillary column. Desired analytes are allowed to migrate continuously through the column under the electric field while undesired analytes are confined to the inlet vial by application of a hydrodynamic counter pressure. Using pressure ramping and buffer replenishment techniques, 18\% of the total amount present in a bulk sample can be purified when the resolution to the adjacent peak is similar to3. With a higher resolution, the yield could be further improved. Additionally, by periodically introducing fresh buffer into the sample, changes in pH and conductivity can be mediated, allowing higher purity (99.5\%) to be preserved in the collected fractions. With an additional reversed cycle of flow counterbalanced capillary electrophoresis, any individual component in a sample mixture can be purified providing it can be separated in an electrophoresis system.},
	keywords = {CAPILLARY-ZONE-ELECTROPHORESIS, CHIRAL SEPARATIONS, CHROMATOGRAPHY, ENANTIOMERS, FRACTION COLLECTOR, FREE-FLOW ELECTROPHORESIS, ISOELECTRIC-FOCUSING SEPARATION, MASS-SPECTROMETRY, MEMBRANE, PREPARATIVE-SCALE},
	isbn = {0003-2700},
	url = {<Go to ISI>://000221096800019},
	author = {McLaren, D. G. and Chen, D. D. Y.}
}
@article {687,
	title = {A quantitative study of continuous flow-counterbalanced capillary electrophoresis for sample purification},
	journal = {Electrophoresis},
	volume = {24},
	number = {17},
	year = {2003},
	note = {ISI Document Delivery No.: 723ZZTimes Cited: 10Cited Reference Count: 25},
	month = {Sep},
	pages = {2887-2895},
	type = {Article},
	abstract = {A systematic evaluation of continuous flow-counterbalanced capillary electrophoresis for microscale preparative applications is presented. The success of the technique was found to depend on the specific nature of the analyte and background electrolyte and was most heavily influenced by factors such as solution conductivity and rate of buffer depletion. The performance of the technique for the system studied was ultimately limited by contamination arising from changes in analyte mobilities during extended run times. Marked improvements in both purification rate and yield were observed using the zwitterionic buffer 2-(N-cyclohexylamino)ethanesulfonic acid when compared to similar runs carried out using a borate background electrolyte. A quantitative evaluation of the technique was performed for the analytes studied and the performance of the technique has been compared to fraction collection methods. The highest recovery achieved was 5.2\% of the fastest migrating component present in the original sample with a resolution of 9 to the adjacent peak and required 100 min under optimized conditions. Recovery could be further increased to 9.0\% in 120 min for the same analyte using pressure-ramped flow-counterbalanced capillary electrophoresis.},
	keywords = {amino acid, BUFFER, DESIGN, flow-counterbalanced capillary electrophoresis, FRACTION COLLECTOR, LASER-INDUCED FLUORESCENCE, MASS-SPECTROMETRY, MEMBRANE, MICELLAR ELECTROKINETIC CHROMATOGRAPHY, PLASMA, PURIFICATION, SAMPLE, SEPARATION, tetramethylrhodamine isothiocyanate, ZONE-ELECTROPHORESIS, zwitterionic buffer},
	isbn = {0173-0835},
	url = {<Go to ISI>://000185462800002},
	author = {McLaren, D. G. and Chen, D. D. Y.}
}
