Objective: To establish an HPLC method for the simultaneous determination of chlorogenic acid, puerarin, 3’-methoxy puerarin, puerarin apioside, liquiritin, forsythoside A, 3,5-O-dicaffeoylquinic acid, 4,5-dicaffeoylquinic acid, forsythin, honokiol and magnolol in Jinlian Quwen capsules. Methods: The analysis was performed on a Waters AtlantisTM T3 (150 mm×4.6 mm, 3 μm) column, and the mobile phase was comprised of acetonitrile-0.1% phosphoric acid, with the flow rate of 1.0 mL · min-1 in a gradient elution manner. The column temperature was set at 35 ℃. The injection volume was 4 μL and the UV detection wavelengths were set at 225 nm (detecting forsythin), 250 nm (detecting puerarin, 3’-methoxy puerarin and puerarin apioside), 276 nm(detecting liquiritin), 290 nm (detecting honokiol and magnolol) and 325 nm (detecting chlorogenic acid, 3,5-O-dicaffeoylquinic acid, 4,5-dicaffeoylquinic acid and forsythoside A). Results: All the 11 constituents showed good linearity within their detection ranges (r≥0.999 5), whose average recoveries (n=6) were 100.1%-108.1%, with the RSDs of 2.8%-4.1%. The content ranges of 11 components in three batches of samples were 7.505-7.606 mg · g-1, 3.485-3.920 mg · g-1, 0.969-1.068 mg · g-1, 0.837-0.955 mg · g-1, 1.009-1.436 mg · g-1, 3.037-3.602 mg · g-1, 5.259-5.371 mg · g-1, 0.931-1.012 mg · g-1, 1.428-2.053 mg · g-1, 0.939-1.018 mg · g-1 and 2.744-2.827 mg · g-1, respectively. Conclusion: The method is simple, sensitive and reliable. It can be used as a reference for the establishment of quality standard of Jinlian Quwen capsules.
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