title: Sensitive determination of three aconitum alkaloids and their metabolites in human plasma by matrix solid-phase dispersion with vortex-assisted dispersive liquid-liquid microextraction and HPLC with diode array detection.
abstract: A simple and sensitive method for determination of three aconitum alkaloids and their metabolites in human plasma was developed using matrix solid-phase dispersion combined with vortex-assisted dispersive liquid-liquid microextraction and high-performance liquid chromatography with diode array detection. The plasma sample was directly purified by matrix solid-phase dispersion and the eluate obtained was concentrated and further clarified by vortex-assisted dispersive liquid-liquid microextraction. Some important parameters affecting the extraction efficiency, such as type and amount of dispersing sorbent, type and volume of elution solvent, type and volume of extraction solvent, salt concentration as well as sample solution pH, were investigated in detail. Under optimal conditions, the proposed method has good repeatability and reproducibility with intraday and interday relative standard deviations lower than 5.44 and 5.75%, respectively. The recoveries of the aconitum alkaloids ranged from 73.81 to 101.82%, and the detection limits were achieved within the range of 1.6-2.1 ng/mL. The proposed method offered the advantages of good applicability, sensitivity, simplicity, and feasibility, which makes it suitable for the determination of trace amounts of aconitum alkaloids in human plasma samples.
authors.affiliation: College of Chemistry, Jilin University, Changchun, China.|School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, China.
authors.forename: Xiaozhong
authors.initials: X
authors.lastname: Wang
authors.affiliation: College of Chemistry, Jilin University, Changchun, China.
authors.forename: Xuwen
authors.initials: X
authors.lastname: Li
authors.affiliation: College of Chemistry, Jilin University, Changchun, China.
authors.forename: Lanjie
authors.initials: L
authors.lastname: Li
authors.affiliation: College of Chemistry, Jilin University, Changchun, China.
authors.forename: Min
authors.initials: M
authors.lastname: Li
authors.affiliation: College of Chemistry, Jilin University, Changchun, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Liu
authors.affiliation: College of Chemistry, Jilin University, Changchun, China.
authors.forename: Qian
authors.initials: Q
authors.lastname: Wu
authors.affiliation: College of Chemistry, Jilin University, Changchun, China.
authors.forename: Peng
authors.initials: P
authors.lastname: Li
authors.affiliation: College of Chemistry, Jilin University, Changchun, China.
authors.forename: Yongri
authors.initials: Y
authors.lastname: Jin
mesh_terms: D031841:Aconitum / Q000737:chemistry* / Q000378:metabolism; D000470:Alkaloids / Q000097:blood* / Q000378:metabolism; D002851:Chromatography, High Pressure Liquid; D006801:Humans; D059627:Liquid Phase Microextraction; D052616:Solid Phase Extraction
chemical_list: D000470:Alkaloids
keywords: Aconitum alkaloids; Dispersive liquid-liquid microextraction; Human plasma; Matrix solid-phase dispersion