Table 4.
Correlation matrix between the results obtained by ICP-OES and SEM-EDX from the biosorption of Mn(II), Co(II), Zn(II) and Cu(II) ions, (N = 4)
| C X LAD.(ICP) | C X LAD.(SEM) | q S (ICP) | q X (ICP) | |
|---|---|---|---|---|
| C X LAD.(ICP) | 1.00 | |||
| C X LAD.(SEM) | 0.681 | 1.00 | ||
| q S (ICP) | 0.941** | 0.784 | 1.00 | |
| q X (ICP) | 1.00* | 0.681 | 0.940** | 1.00 |
Correlation coefficient is significant: *at p < 0.05; ** at p < 0.1
Where:
C X LAD.(ICP) the concentration of elements in the metal-laden biomass, mg kg−1
C X LAD.(SEM) the atomic concentration of elements on the surface of the metal-laden biomass, %