| Solvent system |
EI ( oil) (%) |
EI( diesel) (%) |
ODA (in cm) |
DCA |
| Sodium citrate buffer 3 |
27 ±0.11 |
9 ±0.17 |
1 ±0.40 |
+ |
| Sodium citrate buffer- 4 |
28 ±0.20 |
10 ±0.30 |
1 ±0.1 |
+ |
| Sodium citrate buffer 5 |
30 ±0.05 |
12 ±0.51 |
0 ±0.95 |
+ |
| Sodium citrate buffer 6 |
33 ±0.12 |
13 ±0.61 |
1 ±0.70 |
+ |
| sodium carbonate buffer 7 |
35 ±0.19 |
15 ±0.21 |
2 ±0.4 |
+ |
| sodium carbonate buffer 8 |
29 ±0.05 |
12 ±0.05 |
1 ±0.05 |
+ |
| sodium carbonate buffer9 |
19 ±0.01 |
10 ±0.02 |
nd |
nd |
| sodium carbonate buffer 10 |
13 ±0.08 |
8 ±0.14 |
nd |
nd |
| Water |
43 ±0.31 |
22 ±0.06 |
3 ±0.19 |
++ |
|
