title: [Simultaneous determination of chlormequat chloride and mepiquat chloride in plants by mobile phase ion chromatography].
abstract: Ion-pair reagent was used as mobile phase for the simultaneous separation of chlormequat chloride and mepiquat chloride in plants. The rapid separation was performed on a Dionex IonPac NG1 guard column and a Dionex IonPac NS1 analytical column using 1.0 mL/min of the eluent mixture of 1.00 mmol/L nonafluoropentanoic acid (as ion-pair reagent) and 7% acetonitrile, and the detection was achieved by a suppressed conductivity detector. The method provided good resolution of the analyte peaks without any interference. The detection limits of chlormequat chloride and mepiquat chloride were 0.154 6 mg/L and 0.171 4 mg/L, respectively. The linear calibration curves were obtained in the range of 1 - 100 mg/L. The mean recoveries in the ranges of 96.06% - 104.6% for chlormequat chloride and 98.53% - 103.7% for mepiquat chloride were obtained in real samples. The method requires only simple sample preparation and the technique is suitable for routine quality control analysis.
authors.affiliation: School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China.
authors.forename: Xu
authors.initials: X
authors.lastname: Zhou
authors.forename: Jingang
authors.initials: J
authors.lastname: Xu
authors.forename: Zhidong
authors.initials: Z
authors.lastname: Chen
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhu
mesh_terms: D002716:Chlormequat / Q000032:analysis*; D002852:Chromatography, Ion Exchange / Q000379:methods*; D004350:Drug Residues / Q000032:analysis; D010880:Piperidines / Q000032:analysis*; D010937:Plant Growth Regulators / Q000032:analysis; D010944:Plants / Q000737:chemistry*
chemical_list: D010880:Piperidines; D010937:Plant Growth Regulators; D002716:Chlormequat; C049449:mepiquat