| Dye |
Amount added |
Amount recovered |
% Recovery |
%RSD |
| Dimethyl yellow |
2.5
5.0
10.0
25.0
50.0 |
1.89
3.74
7.56
18.90
38.20 |
75.5
74.8
75.6
75.6
76.4 |
1.12
2.08
2.53
2.81
1.48 |
| Sudan I |
2.5
5.0
10.0
25.0
50.0 |
1.91
3.81
7.31
18.33
36.80 |
76.3
76.2
73.1
73.3
73.6 |
3.62
1.39
2.23
3.09
2.31 |
| Sudan II |
2.5
5.0
10.0
25.0
50.0 |
1.94
3.65
7.01
18.25
36.48 |
77.6
73.0
70.1
73.0
73.0 |
3.56
1.16
2.42
1.74
2.42 |
| Sudan III |
2.5
5.0
10.0
25.0
50.0 |
1.74
3.46
6.83
17.65
35.85 |
69.4
69.3
68.3
70.6
71.7 |
3.87
2.35
2.28
3.00
1.78 |
| Sudan IV |
2.5
5.0
10.0
25.0
50.0 |
1.56
3.31
6.49
15.74
31.65 |
62.3
66.2
64.9
63.0
63.3 |
2.72
3.74
2.18
1.68
2.68 |
The samples were spiked with dyes at the concentrations of 2.5, 5.0, 10.0, 25.0 and 50 mgL-1. Recovery of dyes was performed in duplicate and the mean data is presented |
