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China Pharmacy ; (12): 2491-2496, 2019.
Article in Chinese | WPRIM | ID: wpr-817265

ABSTRACT

OBJECTIVE: To establish a method for simultaneous determination of eleven active constituents in Zhenwutang decoction, such as 5-hydroxymethylfurfural, (+)-cianidanol, paeoniflorin, benzoylaconitine, benzoylhypacoitine, benzoylpaeoniflorin, 6-gingerol, 8-gingerol, atractylenolide Ⅱ, 6-shogaol and pachymic acid. METHODS: HPLC method was adopted. The separation was performed on Phenomenex Kinetex C18 column with mobile phase consisted of acetonitrile-0.2 % phosphoric acid solution(gradient elution) at flow rate of 1.0 mL/min. The detection wavelength was set at 285 nm (4.4-7 min, 5-hydroxymethylfurfural), 203 nm [7-12 min,(+)-cianidanol], 233 nm (12-50 min,paeoniflorin, benzoylaconitine, benzoylhypacoitine, benzoylpaeoni- florin), 200 nm (50-62.3 min, 6-gingerol, 8-gingerol; 62.9-90 min, 6-shogaol, pachymic acid) and 222 nm (62.3-62.9 min, atractylenolide Ⅱ). The column temperature was set at 35 ℃, and the sample size was 20 μL. RESULTS: The linear ranges of 5-hydroxymethylfurfural, (+) -cianidanol, paeoniflorin, benzoylaconitine, benzoylhypacoitine, benzoylpaeoniflorin, 6-gingerol, 8-gingerol, atractylenolide Ⅱ, 6-shogaol, pachymic acid were 0.62-12.47 μg/mL (r=0.999 6),2.36-47.25 μg/mL (r=0.999 7),200.80-4 016 μg/mL (r=0.999 7),4.45-89.04 μg/mL (r=0.999 6),4.28-85.54 μg/mL (r=0.999 5),5.16-103.13 μg/mL (r=0.999 9),5.53-110.66 μg/mL (r=0.999 9),0.84-16.89 μg/mL (r=0.999 8),0.60-12.04 μg/mL (r=0.999 9),0.53-10.62 μg/mL (r=0.999 5),1.04-20.78 μg/mL (r=0.999 7), respectively. The limits of quantitation were 0.155, 0.590, 1.210, 1.112, 1.070, 0.258, 0.553, 0.421, 0.153, 0.354, 0.431 μg/mL, respectively. The limits of detection were 0.047, 0.179, 0.134, 0.337, 0.324, 0.078, 0.168, 0.128, 0.046, 0.107, 0.131 μg/mL, respectively. RSDs of precision, stability and reproducibility tests were all lower than 3%. The average recovery rates were 96.06%-103.01%(RSD=2.64%,n=6), 95.11%-101.57%(RSD=2.58%,n=6), 97.22%-102.11%(RSD=1.93%,n=6), 96.43%-102.78%(RSD=2.35%,n=6), 96.42%-101.43%(RSD=2.15%,n=6), 96.86%-102.05%(RSD=2.10%,n=6), 95.32%-100.55%(RSD=1.87%,n=6), 97.04%-103.25%(RSD=2.22%,n=6), 96.78%-103.22%(RSD=2.62%,n=6), 97.04%-103.14%(RSD=2.28%,n=6), 97.08%-103.51%(RSD=2.94%,n=6), respectively. CONCLUSIONS: The method is accurate and specific, and suitable for simultaneous determination 11 active components of Zhenwutang decoction.

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