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  • Title: [Simultaneous determination of chlormequat chloride and mepiquat chloride in plants by mobile phase ion chromatography].
    Author: Zhou X, Xu J, Chen Z, Zhu Y.
    Journal: Se Pu; 2011 Mar; 29(3):244-8. PubMed ID: 21657055.
    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.
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