title: High-performance liquid chromatography assay with programmed flow elution for cisatracurium in human plasma: application to pharmacokinetics in infants and children.
abstract: A high-performance liquid chromatography (HPLC) assay with fluorescence detection (FLD) for quantification of cisatracurium in human plasma was developed and fully validated. Liquid-liquid extraction was employed for sample preparation. The separation was carried out on a C18 column with ternary mobile phase composed of 30mmolL(-1) phosphate buffer (pH 3.0), acetonitrile and methanol (60:35:5, v/v/v). Verapamil was used as the internal standard. The isocratic elution with programmed flow rate was employed by setting at 0.8mLmin(-1) from 0 to 3.5min, 0.5mLmin(-1) from 3.5 to 6min, and 1.0mLmin(-1) from 6 to 10min. The fluorescence detection was performed at 236nm for excitation and 324nm for emission. The assay was linear from 50 to 2800ngmL(-1), with a detection limit of 12ngmL(-1). The correlation coefficient (r) for linear regression was 0.9997. The intra-day coefficients of variation (CVs) were less than 2.0%, and the inter-day CVs were less than 4.0%. The mean recoveries were in the range of 92.1-100.4%. The total HPLC run time was less than 10min. The developed HPLC method was fast, simple, sensitive, accurate and suitable for studying the pharmacokinetics of cisatracurium in infants and children after intravenous administration.
authors.affiliation: Key Laboratory of Clinical Laboratory Diagnostics, Ministry of Education, College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, PR China.
authors.forename: Jieying
authors.initials: J
authors.lastname: Gao
authors.affiliation: Key Laboratory of Clinical Laboratory Diagnostics, Ministry of Education, College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, PR China.
authors.forename: Ting
authors.initials: T
authors.lastname: Yang
authors.affiliation: Department of Anesthesiology, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China.
authors.forename: Mao
authors.initials: M
authors.lastname: Ye
authors.affiliation: Key Laboratory of Clinical Laboratory Diagnostics, Ministry of Education, College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, PR China.
authors.forename: Xiaoqing
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Clinical Laboratory Diagnostics, Ministry of Education, College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, PR China.
authors.forename: Gang
authors.initials: G
authors.lastname: Tian
authors.affiliation: Key Laboratory of Clinical Laboratory Diagnostics, Ministry of Education, College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, PR China.
authors.forename: Qianna
authors.initials: Q
authors.lastname: Zhen
authors.affiliation: Key Laboratory of Clinical Laboratory Diagnostics, Ministry of Education, College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, PR China. Electronic address: dingmin@cqmu.edu.cn.
authors.forename: Min
authors.initials: M
authors.lastname: Ding
mesh_terms: D001279:Atracurium / Q000031:analogs & derivatives* / Q000097:blood / Q000737:chemistry / Q000493:pharmacokinetics; D002675:Child, Preschool; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D004355:Drug Stability; D006801:Humans; D007223:Infant; D057230:Limit of Detection; D016014:Linear Models; D059625:Liquid-Liquid Extraction; D015203:Reproducibility of Results
chemical_list: D001279:Atracurium; C101584:cisatracurium
keywords: Cisatracurium; HPLC-FLD; Infants and children; Plasma pharmacokinetics; Programmed flow elution