Abstract
A simple, sensitive and accurate liquid chromatography with electrochemical detection (LC-ECD) method for simultaneous separation and determination of six phenolic compounds, including gallic acid, protocatechuic acid, caffeic acid, p-coumaric acid, rutin and quercetin in jujube has been established. ECD is more sensitive than diode-array detection (DAD) for the detection of the six phenolic compounds. All calibration curves of the phenolic compounds showed good linearity (r ≧ 0.9995) within the test ranges. The recoveries were higher than 98%. This approach can provide a reference to determine phenolic compounds in other products.
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Acknowledgments
This work was financially supported by the Science & Technology Research Program of Shaanxi Province (2009K01-09), Industrialization Program of Shaanxi Provincial Department of Education (09JC03) and the Science Foundation of Northwest University (09NW07). The authors would like to thank the graduate student Gui-Ping Qi for her precious contribution to this work.
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Wang, BN., Cao, W., Gao, H. et al. Simultaneous Determination of Six Phenolic Compounds in Jujube by LC-ECD. Chroma 71, 703–707 (2010). https://doi.org/10.1365/s10337-010-1485-1
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DOI: https://doi.org/10.1365/s10337-010-1485-1