Polymeric ionic liquid as a background electrolyte modifier enhancing the separation of inorganic anions by capillary electrophoresis
-
Yabin Zhou
,
Jing Li
Abstract
A novel and easy method for the separation of inorganic anions by capillary electrophoresis using a polymeric ionic liquid (PIL), poly(1-vinyl-3-butylimidazolium bromide) as a background electrolyte modifier has been developed. The PIL has been proved to generate a reversed electroosmotic flow which reduces the analysis time and improves the separation significantly. Effects of the PIL concentration and buffer composition (pH and concentration) were evaluated on basis of the resolution and efficiency of the sample. Under optimum conditions, good separation of six model inorganic anions was achieved with high efficiency and excellent reproducibility within 3 min. The results obtained indicate that the combination of reversed EOF and the association between the analytes and the PIL on the capillary wall or BGE play a prominent role in the separation of anions. Therefore, the PIL presents a useful alternative for the BGE modifier in the study of inorganic anions by CE.
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© 2011 Institute of Chemistry, Slovak Academy of Sciences
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Artikel in diesem Heft
- Steam-reforming of ethanol for hydrogen production
- Polymeric ionic liquid as a background electrolyte modifier enhancing the separation of inorganic anions by capillary electrophoresis
- Enantioselective extraction of terbutaline enantiomers with β-cyclodextrin derivatives as hydrophilic selectors
- Effective photocatalytic degradation of an azo dye over nanosized Ag/AgBr-modified TiO2 loaded on zeolite
- Photocatalytically-assisted electrochemical degradation of p-aminophenol in aqueous solutions using zeolite-supported TiO2 catalyst
- Spectroscopic investigations and physico-chemical characterization of newly synthesized mixed-ligand complexes of 2-methylbenzimidazole with metal ions
- Synthesis, molecular characterisation, and in vivo study of platinum(IV) coordination compounds against B16 mouse melanoma tumours
- Swelling properties of particles in amphoteric polyacrylamide dispersion
- Electronic structures and spectroscopic regularities of phenylene-modified SWCNTs
- An expeditious, environment-friendly, and microwave-assisted synthesis of 5-isatinylidenerhodanine derivatives
- Pd-catalysed conjugate addition of arylboronic acids to α,β-unsaturated ketones under microwave irradiation
- Regioselective N-alkylation of (2-chloroquinolin-3-yl) methanol with N-heterocyclic compounds using the Mitsunobu reagent
- Antimycobacterial 3-phenyl-4-thioxo-2H-1,3-benzoxazine-2(3H)-ones and 3-phenyl-2H-1,3-benzoxazine-2,4(3H)-dithiones substituted on phenyl and benzoxazine moiety in position 6
- Polar constituents of Ligustrum vulgare L. and their effect on lipoxygenase activity
- Solubility of methane in pure non-ionic surfactants and pure and mixtures of linear alcohols at 298 K and 101.3 kPa
- Theoretical studies on polynitrobicyclo[1.1.1]pentanes in search of novel high energy density materials
- Insight into the degradation of a manganese(III)-citrate complex in aqueous solutions
