Research Article
Using SEM-EDX and ICP-OES to Investigate the Elemental Composition of Green Macroalga Vaucheria sessilis
Table 1
The concentration of elements in the solution before and after bioaccumulation of Zn(II) and Cu(II) ions by Vaucheria sessilis.
| Element | Concentration (mg L−1) of elements in the solution: | Before | After | Before | After | Zn(II) ions | Cu(II) ions |
Bioaccumulation* by Vaucheria sessilis |
| Co | 0.0226 ± 0.0056 | 0.0375 ± 0.0094 | <LLD | 0.00500 ± 0.00125 | Cu | 0.0256 ± 0.0064 | 0.0353 ± 0.0088 | 14.0 ± 2.1 | 4.35 ± 0.65 | Fe | 0.836 ± 0.125 | 0.253 ± 0.038 | 0.833 ± 0.125 | 0.452 ± 0.068 | Mn | 0.0551 ± 0.0138 | 0.0325 ± 0.0081 | 0.0423 ± 0.0105 | 0.0937 ± 0.0234 | Zn | 15.6 ± 2.34 | 1.81 ± 0.27 | 0.099 ± 0.025 | 0.381 ± 0.057 | Ca | 2.71 ± 0.41 | 5.87 ± 0.88 | 2.14 ± 0.32 | 6.72 ± 1.01 | Na | 3.32 ± 0.50 | 4.18 ± 0.63 | 6.62 ± 0.99 | 7.75 ± 1.16 | Ba | 0.0151 ± 0.0038 | 0.0333 ± 0.0083 | 0.00895 ± 0.00224 | 0.0696 ± 0.0174 | K | 90.0 ± 13.5 | 96.5 ± 14.5 | 88.4 ± 13.3 | 97.1 ± 14.6 | Al | 0.124 ± 0.019 | <LLD | 0.105 ± 0.016 | 0.0762 ± 0.0190 | Mg | 2.11 ± 0.32 | 3.16 ± 0.47 | 2.11 ± 0.32 | 4.20 ± 0.63 |
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<LLD: below low limit of detection (Co < 0.0009 mg L−1; Al < 0.0234 mg L−1).
*
12.5 mg L−1; pH of the initial solution 7.0; 0.14 g L−1; 23°C, bioaccumulation time: 2 weeks.
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