Identification and Quantification of Aldose Reductase Inhibitory Flavonoids in Herbal Formulation and Extract of <i>Gymnema sylvestre</i> Using HPLC-PDA and LC-MS/MS

<div>Structures of rutin (a), quercetin (b), and kaempferol (c). Proposed scheme of the fragmentation pattern was also elucidated.</div>

Chromatography Research International

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Figure 1

Figure 1: Identification and Quantification of Aldose Reductase Inhibitory Flavonoids in Herbal Formulation and Extract of <i>Gymnema sylvestre</i> Using HPLC-PDA and LC-MS/MS 

Figure 1 | Identification and Quantification of Aldose Reductase Inhibitory Flavonoids in Herbal Formulation and Extract of Gymnema sylvestre Using HPLC-PDA and LC-MS/MS 