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 |