| Number | Solvent system |
| 1 | Ethyl acetate (6.1 mL), methanol (2 mL), ammonia (0.925 mL), and deionized water (0.925 mL) | 2 | Ethyl acetate (6.1 mL), methanol (2 mL), and ammonia (0.925 mL) | 3 | Ethyl acetate (6.1 mL) and methanol (2 mL) | 4 | Ethyl acetate (6.1 mL), methanol (2 mL), formic acid (0.925 mL), and deionized water (0.925 mL) | 5 | Ethyl acetate (7.1 mL), methanol (1 mL), formic acid (0.925 mL), and deionized water (0.500 mL) | 6 | Ethyl acetate (7.1 mL), methanol (1.5 mL), formic acid (0.925 mL), and deionized water (0.500 mL) | 7 | Ethyl acetate (6.5 mL), methanol (2.5 mL), and formic acid (0.500 mL) | 8 | Ethyl acetate (8 mL) and formic acid (2 mL) | 9 | Ethyl acetate (6 mL), methanol (2 mL), and acetic acid (0.500 mL) | 10 | Ethyl acetate (6.1 mL), acetone (1 mL), ammonia (0.925 mL), and deionized water (0.925 mL) | 11 | Ethyl acetate (6.1 mL), acetone (3 mL), and formic acid (0.500 mL) | 12 | Ethyl acetate (9 mL), acetone (1 mL), ammonia (0.500 mL), and deionized water (0.200 mL) | 13 | Ethyl acetate (9.5 mL), acetone (0.500 mL), and formic acid (0.500 mL) | 14 | Ethyl acetate (9 mL), acetone (1 mL), and methanol (0.500 mL) | 15 | Ethyl acetate (9 mL), acetone (1 mL), methanol (0.500 mL), and deionized water (0.200 mL) | 16 | Ethyl acetate (6.1 mL), methanol (2 mL), and formic acid (0.925 mL) | 17 | Ethyl acetate (6 mL), methanol (2 mL), and ammonia (2 mL) |
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