Research Article
Study on the Effect of Deep Eutectic Solvent Liquid Phase Microextraction on Quality Standard, Antitussive, and Expectorant of Sangbaipi Decoction
Table 2
Sources of deep eutectic solvents.
| | Reagent | Sources | Batch number |
| | Choline chloride | Shanghai Zhanyun Chemical Co., Ltd. | 20190120 | | Maltose | Zhengzhou Kangyuan Chemical Products Co., Ltd. | 201901101 | | Malic acid | Zhengzhou Kangyuan Chemical Products Co., Ltd. | 201904201 | | Fructose | Zhengzhou Kangyuan Chemical Products Co., Ltd. | 202001104 | | Phenol | Xilong Science Co., Ltd. | 20190401 | | Propylene glycol | Tianjin Zhonghe Shengtai Chemical Co., Ltd. | 20180309 | | Urea | Tianjin Ruijinte Chemicals Co., Ltd. | 20170109 | | Acetic acid | Tianjin Ruijinte Chemicals Co., Ltd. | 20180402 | | Citrin | Zhengzhou Kangyuan Chemical Products Co., Ltd. | 201904701 |
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