Table 3 Intuitive Analysis of Orthogonal Experiments
No | Mass fraction of phosphoric acid (%) | Impregnation ratio | Temperature (℃) | Time (h) | Adsorption capacity for chlorogenic acid (μg) |
|---|---|---|---|---|---|
1 | 30 | 1:1 | 500 | 1.0 | 7.6 |
2 | 30 | 1:5 | 600 | 1.5 | 4.8 |
3 | 30 | 1:10 | 700 | 2.0 | 37 |
4 | 45 | 1:1 | 600 | 2.0 | 40.8 |
5 | 45 | 1:5 | 700 | 1.0 | 38.4 |
6 | 45 | 1:10 | 500 | 1.5 | 46.8 |
7 | 60 | 1:1 | 700 | 1.5 | 34.6 |
8 | 60 | 1:5 | 500 | 2.0 | 41.2 |
9 | 60 | 1:10 | 600 | 1.0 | 31.8 |
k1 | 16.467 | 27.667 | 31.867 | 25.933 | |
k2 | 42.000 | 28.133 | 25.800 | 28.733 | |
k3 | 35.867 | 38.533 | 36.667 | 39.667 | |
R | 25.533 | 10.866 | 10.867 | 13.734 |