title: Liquid chromatography-tandem mass spectrometric method for determination of the anti-inflammatory compound vicenin-2 in the leaves of L. ericoides Mart.
abstract: This paper reports a rapid and sensitive method for determination of the anti-inflammatory compound vicenin-2 in L. ericoides Mart. using liquid chromatography-tandem mass spectrometry. Separation of the compound of interest was performed on a VP-ODS(18) (150 x 2 mm, Shimadzu, Japan) column and a pre-column packed with GPV-ODS C(18) (5 x 2 mm, Sigma-Aldrich, USA) with acetonitrile-water (15:85) mobile phase containing 2% acetic acid using isocratic flow at 0.5 mL/min for 2 min. Multiple-reaction monitoring of vicenin-2 was performed using electrospray positive ionization. The linear calibration curves were generated using a concentration range of 5-2500 ng/mL with correlation coefficients >0.99. The values of limit of detection and limit of quantitation were found to be 1 and 5 ng/mL, respectively. The method developed based on LC-ESIMS/MS is advantageous because it permits the rapid and selective detection of vicenin-2. Furthermore, the method can be easily applied to the routine analysis of vicenin-2 in plant extracts using a minimal amount of sample.
authors.affiliation: Departamento de Física e Química, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ave do Café s/n, CEP 14040-903, Monte Alegre, Ribeirão Preto, SP, Brasil.
authors.forename: Solange Leite
authors.initials: SL
authors.lastname: de Moraes
authors.forename: José Carlos
authors.initials: JC
authors.lastname: Tomaz
authors.forename: Norberto Peporine
authors.initials: NP
authors.lastname: Lopes
mesh_terms: D000893:Anti-Inflammatory Agents / Q000032:analysis*; D047310:Apigenin / Q000032:analysis*; D019659:Asteraceae / Q000737:chemistry*; D002853:Chromatography, Liquid / Q000379:methods*; D005960:Glucosides / Q000032:analysis*; D010936:Plant Extracts / Q000737:chemistry; D018515:Plant Leaves / Q000737:chemistry*; D012680:Sensitivity and Specificity; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods; D053719:Tandem Mass Spectrometry / Q000379:methods*
chemical_list: D000893:Anti-Inflammatory Agents; D005960:Glucosides; D010936:Plant Extracts; C117329:vicenin; D047310:Apigenin