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0.03M FeCl3-60% MeOH, 0.6 X 50 cm, 0.3 ~1.0 ml/ min.4) 3-Methyl(7-13-33) -5-Sulfo(50-81-140) 0.03M FeCl3-60% MeOH, 0.6 X 50 cm, 0.3 ~1.0 ml/ min. 5) 3-Nitro(7-12-28) -5-Sulfo(57-88-150) 0.03M FeCl3-60% MeOH, 0.6 X 50 cm, 0.3 ~1.0 ml/ min. 6) 4-Nitro(10-13-23) « 5-Sulfo(50-65-92) 0.07M FeCl3-60% MeOH, 0.6 X 50 cm, 0.3 ~0.5 ml/ min. 7) 5-Nitro(17-26-44) -5-Sulfo(50-65-98) 0.07M FeCl3-60% MeOH, 0.6 X 50 cm, 0.3 -1.0 ml/ min. 8) 4-Hydroxy(16-22-31) -5-Sulfo(50-67-97) 0.07M FeCI3-60% MeOH, 0.6 X 50 cm,0.3 ~1.0 ml/min. 9) Salicylic(27-47-lll) 0.30M FeCl3-H20,0.6 X 50 cm, 0.5 ~1.0 ml/min. 10) 3-Nitro(43-77-110) 0.30M FeCl3-H20, 0.6 X 50 cm, 0.5 ~1.0 ml/min. 11) Salicylic(17-34-78) « 5-Nitro(90-125-160) 0.30M FeCl3-H20, 0.6 X 45.5 cm, 1.0 ± 0.1 ml/min.

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