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Table 1 Antioxidants activities using (DPPH) radical scavenging method

From: Synthesis, characterization and evaluation of antioxidant activities of some novel chalcones analogues

Radical-scavenging activity% Comp.
2 μg/ml 4 μg/ml 6 μg/ml 8 μg/ml 10 μg/ml  
63.10 64.00 64.86 65.81 66.70 ascorbic acid
39.65 44.03 48.85 52.00 56.00 3a
20.89 30.11 40.59 57.56 86.94 3b
43.67 34.78 27.62 19.83 17.81 3c
52.76 58.33 60.43 64.05 67.45 3d
25.26 32.25 33.67 33.51 36.79 3e
36.56 38.43 40.68 43.78 47.02 5b
29.01 32.23 36.43 39.12 51.24 5c
48.82 44.10 33.91 23.46 19.79 5d
68.59 59.33 48.66 40.62 36.23 5e
42.35 46.58 50.40 52.67 55.42 6b
31.18 38.06 45.55 52.29 54.15 6c
62.60 50.21 44.33 40.43 37.21 6d
62.71 58.53 55.62 42.84 38.52 6e
4.81 2.90 2.87 2.84 2.82 7b
6.44 5.58 5.01 4.17 3.68 7c
7.13 7.05 6.89 5.15 4.84 7d
42.87 38.43 35.35 35.16 32.72 8b
26.73 28.59 34.66 46.63 50.25 8b’
34.82 36.22 39.90 40.29 41.39 8c
33.97 30.65 29.23 28.93 24.60 8d
22.88 24.11 27.34 28.44 30.61 9a
12.06 12.12 12.15 15.17 21.91 9c
4.45 5.34 6.42 9.72 10.41 9e