PMID- 30734853 OWN - NLM STAT- MEDLINE DCOM- 20190501 LR - 20191210 IS - 1618-2650 (Electronic) IS - 1618-2642 (Linking) VI - 411 IP - 10 DP - 2019 Apr TI - Enantioseparation of chiral beta-blockers using polynorepinephrine-coated nanoparticles and chiral capillary electrophoresis. PG - 2121-2129 LID - 10.1007/s00216-019-01641-4 [doi] AB - A method of combining magnetic solid-phase separation (MSPE) and chiral capillary electrophoresis (CE) is developed for enantioseparation of trace amounts of beta-blockers. Polynorepinephrine-functionalized magnetic nanoparticles (polyNE-MNPs) are synthesized and applied to simultaneously extract three beta-blockers (carteolol, metoprolol, and betaxolol). The prepared polyNE-MNPs are spherical with a diameter of 198 +/- 17 nm and the thickness of the polyNE coating is about 14 nm. PolyNE possesses abundant catechol hydroxyl and secondary amine groups, endowing the MNPs with excellent hydrophilicity. Under the optimum conditions, the extraction efficiencies of polyNE-MNPs for beta-blockers are in the range of 89.6 to 100%, with relative standard deviations (RSDs) below 3.5%. The extraction process can be finished in 4 min. Field-enhanced sample injection (FESI) in chiral CE is constructed to further enhance the sensitivities of beta-blocker enantiomers. The limits of detection for beta-blocker enantiomers by the FESI-CE with polyNE-MNPs are in the range of 0.401 to 1.59 ng mL(-1). The practicability of this method in real samples is evaluated by analysis of human urine samples. The recoveries for each enantiomer of beta-blockers in the real samples range from 89.5 to 92.8%, with RSDs ranging from 0.37 to 5.9%. The whole detection process can be finished in less than 0.5 h. The method demonstrates its great potential in the pharmacokinetic and pharmacodynamic studies of chiral drugs in humans. Graphical abstract ᅟ. FAU - Wu, Jia AU - Wu J AD - Ministry of Education Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, 510631, Guangdong, China. FAU - Xiao, Xue AU - Xiao X AD - Ministry of Education Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, 510631, Guangdong, China. FAU - Li, Zhenqun AU - Li Z AD - Ministry of Education Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, 510631, Guangdong, China. FAU - Jia, Li AU - Jia L AD - Ministry of Education Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, 510631, Guangdong, China. jiali@scnu.edu.cn. LA - eng GR - 201805010002/the Scientific and Technological Planning Project of Guangzhou City/ GR - 21675056/National Natural Science Foundation of China/ PT - Journal Article PT - Validation Study DEP - 20190208 PL - Germany TA - Anal Bioanal Chem JT - Analytical and bioanalytical chemistry JID - 101134327 RN - 0 (Adrenergic beta-Antagonists) RN - 0 (Magnetite Nanoparticles) RN - 8NF31401XG (Carteolol) RN - GEB06NHM23 (Metoprolol) RN - O0ZR1R6RZ2 (Betaxolol) RN - X4W3ENH1CV (Norepinephrine) SB - IM MH - Adrenergic beta-Antagonists/*isolation & purification/*urine MH - Betaxolol/isolation & purification/urine MH - Carteolol/isolation & purification/urine MH - Electrophoresis, Capillary/instrumentation/*methods MH - Equipment Design MH - Humans MH - Limit of Detection MH - Magnetics/instrumentation/methods MH - Magnetite Nanoparticles/*chemistry/ultrastructure MH - Metoprolol/isolation & purification/urine MH - Norepinephrine/*analogs & derivatives MH - Solid Phase Microextraction/instrumentation/methods MH - Stereoisomerism OTO - NOTNLM OT - Capillary electrophoresis OT - Enantioseparation OT - Field-enhanced sample injection OT - Magnetic separation OT - Polynorepinephrine OT - beta-Blocker EDAT- 2019/02/09 06:00 MHDA- 2019/05/02 06:00 CRDT- 2019/02/09 06:00 PHST- 2018/11/01 00:00 [received] PHST- 2019/01/24 00:00 [accepted] PHST- 2019/01/11 00:00 [revised] PHST- 2019/02/09 06:00 [pubmed] PHST- 2019/05/02 06:00 [medline] PHST- 2019/02/09 06:00 [entrez] AID - 10.1007/s00216-019-01641-4 [pii] AID - 10.1007/s00216-019-01641-4 [doi] PST - ppublish SO - Anal Bioanal Chem. 2019 Apr;411(10):2121-2129. doi: 10.1007/s00216-019-01641-4. Epub 2019 Feb 8.