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Molecules 2016, 21(1), 121; doi:10.3390/molecules21010121

On-Line Organic Solvent Field Enhanced Sample Injection in Capillary Zone Electrophoresis for Analysis of Quetiapine in Beagle Dog Plasma

1,2,†
,
1,2,†
,
1,2,* and 1,2,3,*
1
Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai 200433, China
2
Shanghai Key Laboratory for Pharmaceutical Metabolite Research, Shanghai 200433, China
3
Department of Clinical Pharmacy, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, No. 100 Haining Road, Shanghai 200025, China
These authors contributed equally to this work.
*
Authors to whom correspondence should be addressed.
Academic Editor: Derek J. McPhee
Received: 9 December 2015 / Revised: 11 January 2016 / Accepted: 18 January 2016 / Published: 21 January 2016
(This article belongs to the Section Medicinal Chemistry)
View Full-Text   |   Download PDF [1004 KB, uploaded 21 January 2016]   |  

Abstract

A rapid and sensitive capillary zone electrophoresis (CZE) method with field enhanced sample injection (FESI) was developed and validated for the determination of quetiapine fumarate in beagle dog plasma, with a sample pretreatment by LLE in 96-well deep format plate. The optimum separation was carried out in an uncoated 31.2 cm × 75 μm fused-silica capillary with an applied voltage of 13 kV. The electrophoretic analysis was performed by 50 mM phosphate at pH 2.5. The detection wavelength was 210 nm. Under these optimized conditions, FESI with acetonitrile enhanced the sensitivity of quetiapine about 40–50 folds in total. The method was suitably validated with respect to stability, specificity, linearity, lower limit of quantitation, accuracy, precision and extraction recovery. Using mirtazapine as an internal standard (100 ng/mL), the response of quetiapine was linear over the range of 1–1000 ng/mL. The lower limit of quantification was 1 ng/mL. The intra- and inter-day precisions for the assay were within 4.8% and 12.7%, respectively. The method represents the first application of FESI-CZE to the analysis of quetiapine fumarate in beagle dog plasma after oral administration. View Full-Text
Keywords: quetiapine fumarate; capillary zone electrophoresis; field enhanced sample injection quetiapine fumarate; capillary zone electrophoresis; field enhanced sample injection
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Cao, Y.; Wen, J.; Zhou, T.; Fan, G. On-Line Organic Solvent Field Enhanced Sample Injection in Capillary Zone Electrophoresis for Analysis of Quetiapine in Beagle Dog Plasma. Molecules 2016, 21, 121.

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