title: Sensitive and selective liquid chromatography-tandem mass spectrometry method for the determination of metoclopramide in human plasma: application to a bioequivalence study.
abstract: A simple, sensitive and rapid method has been developed and validated for determination of the metoclopramide (MCP) in 100 microL human plasma. The analytical procedure involves a liquid-liquid extraction method using tramadol as an internal standard (IS). Chromatographic separation was carried out on a HyPURITY ADVANCE column using a mobile phase consisting of acetonitrile and 10 mm ammonium acetate buffer in the ratio of 80:20 (v/v) at a flow rate of 0.3 mL/min. The total run time of analysis was 2.5 min and elution of MCP and IS occurred at 0.9 and 1.3 min, respectively. A linear response function was established for the range of concentrations 0.53-42.07 ng/mL (r > 0.99). The intra- and inter-day precision values for MCP met the acceptance as per FDA guidelines. MCP was stable in a battery of stability studies viz., bench-top, auto-sampler and freeze-thaw cycles. The developed assay method was successfully applied to an oral bioequivalence study in humans.
authors.affiliation: Department of Chemistry, Sri Venkateswara University, Tirupati, India.
authors.forename: Jaswanth Kumar
authors.initials: JK
authors.lastname: Inamadugu
authors.forename: Rajasekhar
authors.initials: R
authors.lastname: Damaramadugu
authors.forename: Ramesh
authors.initials: R
authors.lastname: Mullangi
authors.forename: Venkateswarlu
authors.initials: V
authors.lastname: Ponneri
mesh_terms: D002853:Chromatography, Liquid / Q000379:methods*; D006801:Humans; D008787:Metoclopramide / Q000097:blood*; D012015:Reference Standards; D015203:Reproducibility of Results; D053719:Tandem Mass Spectrometry / Q000379:methods*; D014147:Tramadol / Q000032:analysis
chemical_list: D014147:Tramadol; D008787:Metoclopramide