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Simultaneous Determination of Cadmium, Lead, Copper and Mercury Ions Using Organofunctionalized SBA-15 Nanostructured Silica Modified Graphite - Polyurethane Composite Electrode
| Content Provider | Semantic Scholar |
|---|---|
| Author | Cesarino, Ivana Cavalheiro, Éder Tadeu Gomes Brett, Christopher M. A. |
| Copyright Year | 2010 |
| Abstract | A new sensor has been developed for the simultaneous detection of cadmium, lead, copper and mercury, using differential pulse and square wave anodic stripping voltammetry (DPASV and SWASV) at a graphite –polyurethane composite electrode with SBA-15 silica organofunctionalized with 2-benzothiazolethiol as bulk modifier. The heavy metal ions were preconcentrated on the surface of the modified electrode at � 1.1 V vs. SCE where they complex with 2benzothiazolethiol and are reduced to the metals, and are then reoxidized. Optimum SWASV conditions lead to nanomolar detection limits and simultaneous determination of Cd 2þ ,P b 2þ ,C u 2þ and Hg 2þ in natural waters was achieved. |
| Starting Page | 61 |
| Ending Page | 68 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.1002/elan.200900167 |
| Alternate Webpage(s) | http://www1.ci.uc.pt/pessoal/brett/docs/150_EA.pdf |
| Alternate Webpage(s) | https://doi.org/10.1002/elan.200900167 |
| Volume Number | 22 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |