Comparative study to evaluate the feasibility of sono-anodic and sono-cathodic stripping voltammetry for the determination of Pb in a Cu-Pb alloy
The complicated analytical challenge of lead determination in the presence of high levels of copper, has been investigated using anodic and cathodic stripping voltammetry, on a variety of mercury free electrode substrates. CSV was found to be ideally suited towards lead determination in a predominan...
| Main Authors: | , , |
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| Formato: | Journal article |
| Idioma: | English |
| Publicado: |
2000
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| _version_ | 1826297935061581824 |
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| author | Saterlay, A Tibbetts, D Compton, R |
| author_facet | Saterlay, A Tibbetts, D Compton, R |
| author_sort | Saterlay, A |
| collection | OXFORD |
| description | The complicated analytical challenge of lead determination in the presence of high levels of copper, has been investigated using anodic and cathodic stripping voltammetry, on a variety of mercury free electrode substrates. CSV was found to be ideally suited towards lead determination in a predominantly copper matrix, due to the lack of interference from copper ions on the anodic electrochemistry of lead. A CSV technique, incorporating the use of power-ultrasound and a borondoped diamond electrode is presented. The sono-CSV technique has been optimised to give a lower limit of detection of aqueous Pb2+ ions of 1.6x10-9 M for a 300 s PbO2 deposition, requires no solution degassing, is mercury-free and totally free from copper-intermetallic interference. As an extreme example, the technique was applied successfully to the determination of lead content of a copper-lead alloy, after a simple acid digestion protocol. EXcellent correlation was observed between the known lead level and experimental results, with the technique being sensitive towards the detection of 3.3x10-4% (w/w) lead in copper, for the analysis of a 10 mg sample. |
| first_indexed | 2024-03-07T04:39:11Z |
| format | Journal article |
| id | oxford-uuid:d108dad0-9112-4f3a-95c0-3ddc3b49bddc |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T04:39:11Z |
| publishDate | 2000 |
| record_format | dspace |
| spelling | oxford-uuid:d108dad0-9112-4f3a-95c0-3ddc3b49bddc2022-03-27T07:54:05ZComparative study to evaluate the feasibility of sono-anodic and sono-cathodic stripping voltammetry for the determination of Pb in a Cu-Pb alloyJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:d108dad0-9112-4f3a-95c0-3ddc3b49bddcEnglishSymplectic Elements at Oxford2000Saterlay, ATibbetts, DCompton, RThe complicated analytical challenge of lead determination in the presence of high levels of copper, has been investigated using anodic and cathodic stripping voltammetry, on a variety of mercury free electrode substrates. CSV was found to be ideally suited towards lead determination in a predominantly copper matrix, due to the lack of interference from copper ions on the anodic electrochemistry of lead. A CSV technique, incorporating the use of power-ultrasound and a borondoped diamond electrode is presented. The sono-CSV technique has been optimised to give a lower limit of detection of aqueous Pb2+ ions of 1.6x10-9 M for a 300 s PbO2 deposition, requires no solution degassing, is mercury-free and totally free from copper-intermetallic interference. As an extreme example, the technique was applied successfully to the determination of lead content of a copper-lead alloy, after a simple acid digestion protocol. EXcellent correlation was observed between the known lead level and experimental results, with the technique being sensitive towards the detection of 3.3x10-4% (w/w) lead in copper, for the analysis of a 10 mg sample. |
| spellingShingle | Saterlay, A Tibbetts, D Compton, R Comparative study to evaluate the feasibility of sono-anodic and sono-cathodic stripping voltammetry for the determination of Pb in a Cu-Pb alloy |
| title | Comparative study to evaluate the feasibility of sono-anodic and sono-cathodic stripping voltammetry for the determination of Pb in a Cu-Pb alloy |
| title_full | Comparative study to evaluate the feasibility of sono-anodic and sono-cathodic stripping voltammetry for the determination of Pb in a Cu-Pb alloy |
| title_fullStr | Comparative study to evaluate the feasibility of sono-anodic and sono-cathodic stripping voltammetry for the determination of Pb in a Cu-Pb alloy |
| title_full_unstemmed | Comparative study to evaluate the feasibility of sono-anodic and sono-cathodic stripping voltammetry for the determination of Pb in a Cu-Pb alloy |
| title_short | Comparative study to evaluate the feasibility of sono-anodic and sono-cathodic stripping voltammetry for the determination of Pb in a Cu-Pb alloy |
| title_sort | comparative study to evaluate the feasibility of sono anodic and sono cathodic stripping voltammetry for the determination of pb in a cu pb alloy |
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