NDLI: Direct characterization of aqueous extract of Hibiscus sabdariffa using HPLC with diode array detection coupled to ESI and ion trap MS.

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Direct characterization of aqueous extract of Hibiscus sabdariffa using HPLC with diode array detection coupled to ESI and ion trap MS.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Rodríguez-Medina, Inmaculada C. Beltrán-Debón, Raúl Molina, Vicente Micol Alonso-Villaverde, Carlos Joven, Jorge Menéndez, Javier A. Segura-Carretero, Antonio Fernández-Gutiérrez, Alberto
Description	Country affiliation: Spain Author Affiliation: Rodríguez-Medina IC ( Faculty of Sciences, Department of Analytical Chemistry, University of Granada, Granada, Spain.)
Abstract	The phenolic fraction and other polar compounds of the Hibiscus sabdariffa were separated and identified by HPLC with diode array detection coupled to electrospray TOF and IT tandem MS (DAD-HPLC-ESI-TOF-MS and IT-MS). The H. sabdariffa aqueous extract was filtered and directly injected into the LC system. The analysis of the compounds was carried out by RP HPLC coupled to DAD and TOF-MS in order to obtain molecular formula and exact mass. Posterior analyses with IT-MS were performed and the fragmentation pattern and confirmation of the structures were achieved. The H. sabdariffa samples were successfully analyzed in positive and negative ionization modes with two optimized linear gradients. In positive mode, the two most representative anthocyanins and other compounds were identified whereas the phenolic fraction, hydroxycitric acid and its lactone were identified using the negative ionization mode.
File Format	HTM / HTML
ISSN	16159306
Issue Number	20
Volume Number	32
e-ISSN	16159314
Journal	Journal of Separation Science
Language	English
Publisher	Wiley-VCH
Publisher Date	2009-10-01
Publisher Place	Germany
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Analytical Discipline Chemistry Chromatography, High Pressure Liquid Hibiscus Chemistry Spectrometry, Mass, Electrospray Ionization Tandem Mass Spectrometry Water Anthocyanins Analysis Instrumentation Methods Citrates Humans Molecular Structure Phenols Plant Extracts Plants, Medicinal Evaluation Studies Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry Filtration and Separation

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Direct characterization of aqueous extract of Hibiscus sabdariffa using HPLC with diode array detection coupled to ESI and ion trap MS.

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Direct characterization of aqueous extract of Hibiscus sabdariffa using HPLC with diode array detection coupled to ESI and ion trap MS.