Table 2 Design matrix for the factorial (24) employed for LEVO removal and results of the RP-HPLC using the two adsorbents: MPNP & MSNP
Run no | pH | Time (h) | Levo conc (µg/mL) | Adsorbent conc (g/L) | Average peak area | % Adsorption | Run no. | pH | Time (h) | Levo conc (µg/mL) | Adsorbent conc (g/L) | Average peak area | % Adsorption |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Adsorbent type: MPNP | Adsorbent type: MSNP | ||||||||||||
1 | 4 | 4 | 10 | 16 | 60.99 | 96.55 | 17 | 7 | 12 | 20 | 16 | 25.04 | 98.58 |
2 | 4 | 4 | 20 | 16 | 180.45 | 95.6 | 18 | 7 | 12 | 10 | 16 | 45.44 | 98.89 |
3 | 7 | 4 | 10 | 16 | 681.14 | 61.42 | 19 | 7 | 4 | 10 | 16 | 39.36 | 97.77 |
4 | 4 | 4 | 10 | 4 | 123.25 | 93.02 | 20 | 4 | 12 | 10 | 16 | 31.65 | 98.21 |
5 | 7 | 12 | 20 | 4 | 1927.52 | 52.98 | 21 | 4 | 4 | 20 | 4 | 215.67 | 94.74 |
6 | 4 | 12 | 20 | 16 | 181.3 | 95.58 | 22 | 7 | 4 | 20 | 16 | 71.11 | 98.27 |
7 | 4 | 12 | 10 | 16 | 140.3 | 96.52 | 23 | 7 | 4 | 20 | 4 | 215.35 | 94.75 |
8 | 4 | 12 | 20 | 4 | 1502.17 | 63.35 | 24 | 4 | 12 | 10 | 4 | 100.1 | 94.33 |
9 | 4 | 4 | 20 | 4 | 1348.77 | 67.1 | 25 | 7 | 4 | 10 | 4 | 41.66 | 97.64 |
10 | 7 | 12 | 10 | 4 | 964.04 | 45.4 | 26 | 4 | 12 | 20 | 16 | 75.54 | 98.16 |
11 | 7 | 12 | 10 | 16 | 1030.52 | 41.63 | 27 | 4 | 12 | 20 | 4 | 135.46 | 96.7 |
12 | 7 | 12 | 20 | 16 | 1558.39 | 61.98 | 28 | 4 | 4 | 10 | 4 | 214.1 | 87.87 |
13 | 7 | 4 | 20 | 16 | 2646.19 | 35.44 | 29 | 4 | 4 | 10 | 16 | 35.99 | 97.96 |
14 | 7 | 4 | 10 | 4 | 660.17 | 62.61 | 30 | 7 | 12 | 10 | 4 | 45.33 | 97.43 |
15 | 4 | 12 | 10 | 4 | 437.85 | 75.2 | 31 | 4 | 4 | 20 | 16 | 90.6 | 97.79 |
16 | 7 | 4 | 20 | 4 | 544.12 | 66.48 | 32 | 7 | 12 | 20 | 4 | 137.3 | 96.65 |