Quality assessment of Herba Leonuri based on the analysis of multiple components using normal‐ and reversed‐phase chromatographic methods

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EarlyView Article

  • Published: Oct 30, 2017
  • Author: Shuya Dong, Jiao He, Huiping Hou, Yaping Shuai, Qi Wang, Wenling Yang, Zheng Sun, Qing Li, Kaishun Bi, Ran Liu
  • Journal: Journal of Separation Science


A novel, improved, and comprehensive method for quality evaluation and discrimination of Herba Leonuri has been developed and validated based on normal‐ and reversed‐phase chromatographic methods. To identify Herba Leonuri, normal‐ and reversed‐phase high‐performance thin‐layer chromatography fingerprints were obtained by comparing the colors and Rf values of the bands, and reversed‐phase high‐performance liquid chromatography fingerprints were obtained by using an Agilent Poroshell 120 SB‐C18 within 28 min. By similarity analysis and hierarchical clustering analysis, we show that there are similar chromatographic patterns in Herba Leonuri samples, but significant differences in counterfeits and variants. To quantify the bio‐active components of Herba Leonuri, reversed‐phase high‐performance liquid chromatography was performed to analyze syringate, leonurine, quercetin‐3‐O‐robiniaglycoside, hyperoside, rutin, isoquercitrin, wogonin, and genkwanin simultaneously by single standard to determine multi‐components method with rutin as internal standard. Meanwhile, normal‐phase high‐performance liquid chromatography was performed by using an Agilent ZORBAX HILIC Plus within 6 min to determine trigonelline and stachydrine using trigonelline as internal standard. Innovatively, among these compounds, bio‐active components of quercetin‐3‐O‐robiniaglycoside and trigonelline were first determined in Herba Leonuri. In general, the method integrating multi‐chromatographic analyses offered an efficient way for the standardization and identification of Herba Leonuri.

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