Study on the Mixed-Mode HPLC Separation of Shuang-Huang-Lian and Xue-Bi-Jing Injections Based on an Ionic Liquid Column

• Autor(a) principal: Yang,Aihong
• Data de Publicação: 2018
• Outros Autores: Zhang,Shun, Zhang,Lei, Zhong,Jingjing, Kou,Xiaodi
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Journal of the Brazilian Chemical Society (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532018000701455
• topic: ionic liquid stationary phase; mixed-mode chromatography; Shuang-Huang-Lian injection; Xue-Bi-Jing injection

Both Shuang-Huang-Lian and Xue-Bi-Jing injections are clinically proven efficient and low cost medicines. However, the studies of their chromatographic separation are limited. In this study, a column based on ionic liquid stationary phase was applied for the first time for the analysis of these two injections. For Shuang-Huang-Lian injection, U-shaped plots of retention factors vs. mobile phase constitutions were obtained. This unique kind of separation behavior allowed a flexible adjustment of retention by tuning the mobile phase constituents. Then acids group was analyzed with hydrophilic chromatography mode, while glycosides group was analyzed with reversed phase chromatography mode. Similarly, constituents in Xue-Bi-Jing injection were analyzed with mixed mode high performance liquid chromatography (HPLC). Higher, medium and lower polarity groups were analyzed with hydrophilic interaction, reversed phase and normal phase liquid chromatography modes, respectively. Results from this work provided valuable information for the separation of complicated systems such as traditional Chinese medicine injections.