| Parameter | λmax | A | B | C | D | E |
UV-Vis | Zn | 324.3 | 1.206 ± 0.036 | 1.263 ± 0.037 | 0.554 ± 0.016 | 2.364 ± 0.070 | 2.022 ± 0.060 |
| Cu | 296.7 | 2.701 ± 0.081 | 2.049 ± 0.061 | 1.508 ± 0.045 | 1.044 ± 0.031 | 2.703 ± 0.081 |
| Mg | 282.0 | 1.24 ± 0.037 | 0.624 ± 0.0187 | 1.377 ± 0.0413 | 1.265 ± 0.0379 | 0.141 ± 0.00423 |
| Ca | 279.6 | 0.331 ± 0.009 | 0.608 ± 0.0182 | 0.364 ± 0.0109 | 0.606 ± 0.0181 | 0.079 ± 0.00237 |
AAS | Zn | - | 1.21 ± 0.0363 | 1.42 ± 0.0426 | 0.58 ± 0.0174 | 2.37 ± 0.0711 | 2.02 ± 0.0606 |
| Cu | - | 2.80 ± 0.084 | 2.04 ± 0.0612 | 0.50 ± 0.015 | 1.02 ± 0.030 | 2.70 ± 0.081 |
| Mg | - | 4.80 ± 0.144 | 4.14 ± 0.124 | 2.95 ± 0.088 | 3.45 ± 0.103 | 4.69 ± 0.140 |
| Ca | - | 6.44 ± 0.193 | 8.88 ± 0.266 | 5.19 ± 0.155 | 9.52 ± 0.285 | 4.68 ± 0.140 |