指纹图谱结合一测多评模式在葛根芩连片质量评价中的应用

Application of Fingerprint Combined with QAMS in Quality Evaluation of Gegenqinlian Tablets

关键词:  指纹图谱  一测多评  葛根芩连片  质量控制  相对校正因子

Key words:  fingerprint  quantitative analysis of multi-components by single-marker(QAMS)  Gegenqinlian tablets  quality control  relative correction factor

摘要:

目的 建立葛根芩连片指纹图谱，并采用一测多评法(quantitative analysis of multi-components by single-marker，QAMS)测定其中3’-羟基葛根素、葛根素、3’-甲氧基葛根素、大豆苷、黄芩苷、盐酸巴马汀、盐酸小檗碱、汉黄芩苷、黄芩素、甘草酸铵、汉黄芩素11个化学成分含量。方法 HPLC测定10批葛根芩连片的指纹图谱，建立指纹图谱共有模式，以黄芩苷为参照，计算该成分与3’-羟基葛根素、葛根素、3’-甲氧基葛根素、大豆苷、盐酸巴马汀、盐酸小檗碱、汉黄芩苷、黄芩素、甘草酸铵、汉黄芩素的相对校正因子，并计算其含量。同时对QAMS的计算值与外标法实测值进行比较，以确证QAMS的可行性和科学性。指纹图谱及含量测定色谱条件：采用Waters Xbridge-C₁₈色谱柱(250 mm×4.6 mm，5 μm)，流动相为乙腈-0.1%磷酸水溶液，梯度洗脱；体积流量1.0 mL·min^-1；柱温30 ℃；检测波长260 nm。结果 10批葛根芩连片标定了共有峰20个，指认了其中11个化学成分，10批葛根芩连片相似度均>0.97，3’-羟基葛根素、葛根素、3’-甲氧基葛根素、大豆苷、黄芩苷、盐酸巴马汀、盐酸小檗碱、汉黄芩苷、黄芩素、甘草酸铵、汉黄芩素的线性范围分别为0.056 6~2.830 2，0.241 2~12.058 6，0.128 0~6.401 0，0.059 7~2.983 5，0.242 7~12.134 9，0.045 7~2.285 7，0.192 8~9.641 0，0.043 3~2.167 0，0.018 0~0.900 2，0.021 0~1.048 4，0.011 5~0.575 4 μg，r²为0.999 6~1.000，平均回收率分别100.23%，102.01%，101.66%，102.73%，100.17%，98.45%，98.41%，100.95%，101.85%，97.97%和100.09%，RSD分别为1.24%~2.57%(n=6)；3’-羟基葛根素、葛根素、3’-甲氧基葛根素、大豆苷、盐酸巴马汀、盐酸小檗碱、汉黄芩苷、黄芩素、甘草酸铵、汉黄芩素的相对校正因子分别为0.860 4，0.605 3，0.850 9，0.582 8，0.557 1，0.498 6，0.767 2，0.652 1，2.608 1，0.545 2，待测成分含量QAMS与外标法实测值RAD为0.03%~2.12%。结论 QAMS结合指纹图谱可为葛根芩连片的定量测定和质量控制提供参考。

Abstract:

OBJECTIVE To establish the fingerprint of Gegenqinlian tablets and determine the content of eleven components(3’-hydroxy puerarin, puerarin, 3’-methoxy puerarin, daidzin, baicalin, palmatine hydrochloride, berberine hydrochloride, scutellarin, baicalein, ammonium glycyrrhizinate and wogonin) by quantitative analysis of multi-components by single-marker(QAMS).METHODS Ten batches of Gegenqinlian tablets were determined by HPLC and a common fingerprint was established. Baicalin was selected as internal reference. The relative correction factors of the component with 3’-hydroxy puerarin, puerarin, 3’-methoxy puerarin, daidzin, palmatine hydrochloride, berberine hydrochloride, scutellarin, baicalein, ammonium glycyrrhizinate and wogonin were calculated and their contents were calculated. The feasibility and scientificity of QAMS was evaluated by comparison on the results between the measured value and calculation value by external standard method and QAMS. The chromatographic separation was performed on ananalytical column of Waters Xbridge-C₁₈(250 mm× 4.6 mm, 5 μm) with gradient elution, the mobile phase was acetonitrile 0.1% phosphoric acid aqueous solution, at a flow rate of 1.0 mL·min^-1. The column temperature was 30 ℃ and the detection wavelength was 260 nm.RESULTS There were 20 peaks in 10 batches of Gegenqinlian tablets and 11 chemical constituents were identified. The similarity of 10 batches of Gegenqinlian tablets was >0.97. The linear range of 3’-hydroxy puerarin, puerarin, 3’-methoxy puerarin, daidzin, baicalin, palmatine hydrochloride, berberine hydrochloride, scutellarin, baicalein, ammonium glycyrrhizinate and wogonin were 0.056 6-2.830 2, 0.241 2-12.058 6, 0.128 0-6.401 0, 0.059 7-2.983 5, 0.242 7-12.134 9, 0.045 7-2.285 7, 0.192 8-9.641 0, 0.043 3-2.167 0, 0.018 0-0.900 2, 0.021 0-1.048 4, 0.011 5-0.575 4 μg (r²= 0.999 6-1.000) respectively. The average recovery were 100.23%, 102.01%, 101.66%, 102.73%, 100.17%, 98.45%, 98.41%, 100.95%, 101.85%, 97.97%, 100.09%(RSD=1.24%-2.57%, n=6) respectively. The relative correction factors of 3’-hydroxy puerarin, puerarin, 3’-methoxy puerarin, daidzin, palmatine hydrochloride, berberine hydrochloride, scutellarin, baicalein, ammonium glycyrrhizinate and wogonin were 0.860 4, 0.605 3, 0.850 9, 0.582 8, 0.557 1, 0.498 6, 0.767 2, 0.652 1, 2.608 1, 0.545 2 respectively. RAD between QAMS method and external standard method were 0.03%-2.12%. CONCLUSION The combination of QAMS and fingerprint can provide reference for the quantitative determination and quality control of Gegenqinlian tablets.