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- W2369457336 abstract "Objective:To develop a capillary zone electrophoresis(CZE)method for separation and electrochemi- cal determination of five catecholamine(CAs)drugs including L-dopa(DP),epinephrine(EP),norepinephrine (NE),dopamine(DA),5-hydroxytryptamine(5-HT).Methods:A SiO_2 capillary(60 cm×50 μm)was em- ployed for simultaneous determination of CAs[separation voltage of 6 kV,electrophoretic medium of 8 mmol·L~(-1) p-(quaternary ammonium)calix[4]arene(QAC4A)in 125 mmol·L~(-1) Na_2HPO_4(pH 7.0)].One copper micro- particle-modified carbon fiber microdisk array electrode was fabricated and employed in measure.Results:all the five CAs were baseline separated and recovery were between 92%-105%.The calibration curves were linear over 0.2-1000 μmol·L~(-1) concentration,and the detection limits(S/N=3)were below 0.2 μmol·L~(-1).The devel- oped method was successfully employed for the simultaneous determination of the five CAs in pharmaceutical injec- tions and urine sample of normal people and pheochromocytoma patient.Conclusion:The method is simple,accu- rate,sensible in diagnosis of CA levels." @default.
- W2369457336 created "2016-06-24" @default.
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- W2369457336 date "2007-01-01" @default.
- W2369457336 modified "2023-09-23" @default.
- W2369457336 title "Separation of catecholamines drugs by capillary zone electrophoresis and electrochemical detection" @default.
- W2369457336 hasPublicationYear "2007" @default.
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