TLC Developer -- examples of application of various dyes

1 The disperse dye of azo type is silica gel plate, and the anthraquinone type Zui is easy to use alumina ① Silica gel G chloroform: acetone = 9:1 ② silica gel G benzene: acetone = 9:1 ③ silica gel G toluene: acetic acid = 85:15 ④ silica gel G benzene: chloroform: acetone = 5:2:1 ⑤ silica gel G toluene: acetone = 20:1 2 Cationic dye ① benzene: toluene = 9:1 silica gel G ② chloroform: methanol = 8:1 silica gel G ③ silica gel G n-butanol: ethanol: water = 9:1:1 ④ silica gel G butanol: acetic acid: water = 4 1:5 ⑤ silica gel G butanone: acetic acid: isopropanol = 2:2:1 ⑥ silica gel G propanol: formic acid = 8:2 oxaanthracene system 3 Acid dye ① silica gel G n-butanol: ethyl acetate: water = 6:1:3 ② silica gel G n-butanol: pyridine: water: ammonia water = 4:5:4:1 ③ silica gel G ethyl acetate: pyridine: water = 6:3:1 ④ BaSO4 DMF: water = 3:4 ⑤ silica gel butanol: ammonia water = 9:1 4 Reactive dyes ① silica gel butanol: acetic acid: water = 16:5:15 (16:14:9); ② silica gel butanol: water: DMF = 11:11:3; ③ silica gel G n-propanol: ethyl acetate: water = 6:1:3; ④ silica gel G n-butanol: pyridine: water: ammonia water (concentration) = 5:5:3:2 (4:5:4:1); ⑤ silica gel G pyridine: n-pentanol: ammonia water (concentration) = 1.1:1:15 Direct dyes ① Alumina acetic acid: water (various proportions) ② silica gel G butyl acetate: pyridine: water = 30:45:25 alumina g ③ silica gel G n-propanol: ammonia water = 2:1 ④ silica gel G n-butanol: water: ammonia water = 2:1:1 (upper liquid) 6 Metal complex dye ① silica gel G benzene: acetic acid = 4:1 ② silica gel G chloroform: acetic acid = 9:1 ③ polyamide methanol: water: ammonia water (concentrated) = 80:16 : 4 ④ polyamide methanol: ammonia water (concentrated): 95:5 ⑤ silica gel G n-butanol: anhydrous ethanol: 2n ammonia water = 60:20:20