Objective:To rapidly identify the two morphologies and chemical properties of similar herbal medicines,Blumea riparia and B.megacephala as the basis for chemical constituent analysis.Methods:UPLC-Q-Exactive-MS/MS was ...Objective:To rapidly identify the two morphologies and chemical properties of similar herbal medicines,Blumea riparia and B.megacephala as the basis for chemical constituent analysis.Methods:UPLC-Q-Exactive-MS/MS was utilized for profiling and identification of the constituents in B.riparia and B.megacephala.Chemical pattern recognition(CPR)was further used to compare and distinguish the two herbs and to identify their potential characteristic markers.Then,an HPLC method was established for quality evaluation.Results:A total of 93 constituents are identified,including 54 phenolic acids,35 flavonoids,two saccharides,one phenolic acid glycoside,and one other constituent,of which 67 were identified in B.riparia and B.megacephala for the first time.CPR indicates that B.riparia and B.megacephala samples can be distinguished from each other based on the LC–MS data.The isochlorogenic acid A to cryptochlorogenic acid peak area ratio calculated from the HPLC chromatograms was proposed as a differentiation index for distinguishing and quality control of B.riparia and B.megacephala.Conclusion:This study demonstrates significant differences between B.riparia and B.megacephala in terms of chemical composition.The results provide a rapid and simple strategy for the comparison and evaluation of the quality of B.riparia and B.megacephala.展开更多
目的:建立艾纳香及其伪品假东风草的高效液相色谱(HPLC)指纹图谱。方法:采用HPLC法。色谱柱为Uitimate-C18,流动相为乙腈-0.05%磷酸溶液(梯度洗脱),流速为0.6 m L/min,检测波长为270 nm,柱温为25℃,进样量为7μL。以槲皮素为参照物,对1...目的:建立艾纳香及其伪品假东风草的高效液相色谱(HPLC)指纹图谱。方法:采用HPLC法。色谱柱为Uitimate-C18,流动相为乙腈-0.05%磷酸溶液(梯度洗脱),流速为0.6 m L/min,检测波长为270 nm,柱温为25℃,进样量为7μL。以槲皮素为参照物,对16批艾纳香药材和5批假东风草药材采用《中药色谱指纹图谱相似度评价系统》(2004 A版)进行共有峰指认和相似度分析。结果:16批艾纳香药材有61个共有峰,相似度为0.931~0.995,明显高于5批假东风草药材的相似度。结论:该研究所建指纹图谱可为艾纳香的鉴别和质量评价提供参考。展开更多
基金supported by National Key Research and Development Program of China(No.2018YFC1706101)The Sichuan Key Research and Development Program(No.2021YFS0043)+1 种基金Leading Talent Support Program of National Civil Commission(2021)Special Fund of Natural Science for the Central Universities(No.2020NQN42).
文摘Objective:To rapidly identify the two morphologies and chemical properties of similar herbal medicines,Blumea riparia and B.megacephala as the basis for chemical constituent analysis.Methods:UPLC-Q-Exactive-MS/MS was utilized for profiling and identification of the constituents in B.riparia and B.megacephala.Chemical pattern recognition(CPR)was further used to compare and distinguish the two herbs and to identify their potential characteristic markers.Then,an HPLC method was established for quality evaluation.Results:A total of 93 constituents are identified,including 54 phenolic acids,35 flavonoids,two saccharides,one phenolic acid glycoside,and one other constituent,of which 67 were identified in B.riparia and B.megacephala for the first time.CPR indicates that B.riparia and B.megacephala samples can be distinguished from each other based on the LC–MS data.The isochlorogenic acid A to cryptochlorogenic acid peak area ratio calculated from the HPLC chromatograms was proposed as a differentiation index for distinguishing and quality control of B.riparia and B.megacephala.Conclusion:This study demonstrates significant differences between B.riparia and B.megacephala in terms of chemical composition.The results provide a rapid and simple strategy for the comparison and evaluation of the quality of B.riparia and B.megacephala.
文摘目的:建立艾纳香及其伪品假东风草的高效液相色谱(HPLC)指纹图谱。方法:采用HPLC法。色谱柱为Uitimate-C18,流动相为乙腈-0.05%磷酸溶液(梯度洗脱),流速为0.6 m L/min,检测波长为270 nm,柱温为25℃,进样量为7μL。以槲皮素为参照物,对16批艾纳香药材和5批假东风草药材采用《中药色谱指纹图谱相似度评价系统》(2004 A版)进行共有峰指认和相似度分析。结果:16批艾纳香药材有61个共有峰,相似度为0.931~0.995,明显高于5批假东风草药材的相似度。结论:该研究所建指纹图谱可为艾纳香的鉴别和质量评价提供参考。
