期刊
ELECTROPHORESIS
卷 34, 期 6, 页码 841-845出版社
WILEY
DOI: 10.1002/elps.201200516
关键词
CE; Chiral separation; Ephedrine; Graphene oxide
资金
- National Natural Science Foundation of China [21005050]
- Scientific Research Common Program of Beijing Municipal Commission of Education [KM201010028009]
- Funding Project for Academic Human Resources Development in Institutions of Higher Learning under the Jurisdiction of Beijing Municipality [PHR20100718, PHR201108147]
This article describes a new application of graphene oxide (GO) in CE based on the coating of fused silica capillary for chiral separation. The coated capillary was characterized by SEM, energy dispersive X-ray spectroscopy, and Raman spectra. The results indicated that the capillary was coated with GO. Chiral separations were carried out in the GO-coated capillary for the ephedrinepseudoephedrine (E-PE) isomers and -methylphenethylamine (-Me-PEA) isomers at the optimal buffer conditions without any chiral selector by CE. The precision and reproducibility of GO-coated capillary were investigated, and the RSDs of migration time (n = 6) for the E-PE isomers were 1.351.41%, and 0.973.50% for -Me-PEA isomers, respectively. The LOD for E-PE isomers and -Me-PEA isomers was 3 M and 18 M, respectively.
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