title: Determination of pyrethroids in porcine tissues by matrix solid-phase dispersion extraction and high-performance liquid chromatography.
abstract: An effective matrix solid-phase dispersion (MSPD) extraction for determination of two pyrethroids (cypermethrin and deltamethrin) in porcine tissues (liver, muscle, heart and kidney) is described. A neutral alumina-based MPSD column was used for extraction of analytes. The high-performance liquid chromatography and ultraviolet detector was applied using a reverse-phase C(18) column and acetonitrile-water (85:15, v/v) was used as mobile phase. The good linear fit curve ranging from 0.05 to 50μgmL(-1) for cypermethrin (CM) and deltamethrin (DM) was obtained with a regression coefficient (r) of 0.999. Recoveries at 0.2 and 0.5μgg(-1) levels were between 83.5% and 109%. The limits of detection and quantification were: 0.01 and 0.026μgg(-1) for CM, 0.017 and 0.056μgg(-1) for DM, respectively. The proposed method was successfully applied to the determination of the pyrethroids in porcine tissues.
authors.affiliation: College of Environment and Resources, Jilin University, 2699 Qianjin Street, Changchun 130012, PR China.
authors.forename: Jianhua
authors.initials: J
authors.lastname: Cheng
authors.forename: Miao
authors.initials: M
authors.lastname: Liu
authors.forename: Yong
authors.initials: Y
authors.lastname: Yu
authors.forename: Xiupin
authors.initials: X
authors.lastname: Wang
authors.forename: Hanqi
authors.initials: H
authors.lastname: Zhang
authors.forename: Lan
authors.initials: L
authors.lastname: Ding
authors.forename: Haiyan
authors.initials: H
authors.lastname: Jin