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钦汤是由诃子、川楝子、栀子、瞿麦、红花、五灵脂、川木通、人工牛黄8味药材混合制成的蒙药经典处方,主要用于治疗肝胆热,肝肿大,肝区痛。蒙药复方制剂成分复杂,在临床应用中往往是多组分间的协同作用达到治疗效果。目前钦汤质量标准中仅有性状、鉴别和检查项,无含量测定,而单一成分测定不能反映钦汤的整体化学信息,难以控制和评价制剂质量[1],为更全面地完善其质量标准体系,本研究采用多组分同时测定的方法对多个成分进行质量评价从而对复方制剂实现综合、整体的评价模式。
HPLC波长切换法同时测定蒙药钦汤中5种活性成分的含量
Simultaneous determination of five active components of Qintang through wavelength conversion by HPLC
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摘要: 本文建立HPLC波长切换法同时测定蒙药钦汤中没食子酸、原儿茶酸、羟基红花黄色素A、栀子苷和鞣花酸的含量的方法。试验结果表明,测定的没食子酸、原儿茶酸、羟基红花黄色素A、栀子苷、鞣花酸分别在检测范围内(0.358—0.954 µg、0.066—0.175 µg、0.386—1.031 µg、1.685—4.493 µg、0.308—0.822 µg)保持良好的线性关系;平均加样回收率为98.8%—101.8%,RSD<2.0%;3批样品中5个成分的含量分别是1.0399—1.0629、0.0778—0.0863、1.0986—1.1844、6.5152—6.836 3、1.2444—1.3098 mg·g −1。该方法简便、准确,可同时测定钦汤中5种活性成分,适用于钦汤质量的控制。Abstract: An analytical method for determining gallic acid, protocatechuic acid, hydroxysafflor yellow A, gardenoside and ellagic acid in Qintang of Mongolian medicine was established by high performance liquid chromatography(HPLC)wavelength switching. The results showed that the five components of gallic acid, protocatechuic acid, hydroxyl safflower yellow A, gardenoside and ellagic acid were maintain a good linear relationship within the detection range (0.358—0.954 µg、0.066—0.175 µg、0.386—1.031 µg、1.685—4.493 µg、0.308—0.822 µg) . The average recoveries were 98.8%—101.8%, RSD < 2.0%. The contents of 5 components in 3 batches of samples were 1.0399—1.0629, 0.0778—0.0863, 1.0986—1.1844, 6.5152—6.8363, 1.2444—1.3098 mg·g−1, respectively. The method is simple, accurate, and can simultaneously determine five active ingredients in Qintang, and is suitable for the quality control of Qintang.
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Key words:
- Qintang /
- gallic acid /
- protocatechuic acid /
- hydroxysafflor yellow A /
- gardenoside /
- ellagic acid /
- HPLC /
- wavelength switching method
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表 1 梯度洗脱表
Table 1. Gradient elution
洗脱时间/min 0—6 6—10 10—16 16—22 22—25 25—32 32—38 45 流动相(A)/% 9—9 9—13 13—15 15—18 18—18 18—28 28—48 48 表 2 5种成分的回归方程及线性关系
Table 2. The regression equations linear ranges of five components
成分 回归方程 r 线性范围/µg 没食子酸(gallic acid) Y=0.309 1X+0.187 7 0.999 9 0.358—0.954 原儿茶酸(protocatechuic acid) Y=0.557 8X+0.021 7 0.999 9 0.066—0.175 羟基红花黄色素A(hydroxysafflor yellow A) Y=0.514 2X+0.106 5 0.999 9 0.386—1.031 栀子苷(gardenoside) Y=0.257 2X+0.444 9 0.999 9 1.685—4.493 鞣花酸(ellagic acid) Y=1.420 1X-0.472 1 0.999 9 0.308—0.822 表 3 钦汤样品含量测定结果(mg·g-1,n=3)
Table 3. The results of sample content determination of Qintang
批号 没食子酸 原儿茶酸 羟基红花黄色素 A 栀子苷 鞣花酸 910281 1.047 1 0.077 8 1.098 6 6.515 2 1.244 4 910282 1.039 9 0.081 4 1.136 5 6.642 6 1.287 3 910283 1.062 9 0.086 3 1.184 4 6.836 3 1.309 8 -
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