Electroanalysis of trace manganese via cathodic stripping voltammetry: Exploration of edge plane pyrolytic graphite electrodes for environmental analysis
The determination of trace levels of manganese via cathodic stripping voltammetry at an edge plane pyrolytic graphite electrode (eppge) was evaluated for use in environmental analysis. The response of the eppge is compared with boron-doped diamond electrodes under quiescent conditions where the form...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
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2006
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| _version_ | 1797061135884615680 |
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| author | Welch, C Banks, C Komorsky-Lovric, S Compton, R |
| author_facet | Welch, C Banks, C Komorsky-Lovric, S Compton, R |
| author_sort | Welch, C |
| collection | OXFORD |
| description | The determination of trace levels of manganese via cathodic stripping voltammetry at an edge plane pyrolytic graphite electrode (eppge) was evaluated for use in environmental analysis. The response of the eppge is compared with boron-doped diamond electrodes under quiescent conditions where the former is observed to have a three times higher sensitivity. Using this protocol with a stirred accumulation period, a detection limit of 14.2 nmol dm-3 and a sensitivity of 14.2 mol dm-3 A-1 is achieved with linearity from 25 to 250 nmol dm-3, based on a 120 seconds accumulation period. The response at a carbon paste electrode is also compared under the same conditions with the eppge found to be superior in terms of sensitivity, detection limits and reproducibility. The efficacy of the protocol utilising the eppge was assessed in the determination of manganese in a certified seawater reference material, NASS-5, from the National Research Council Canada, which was found to be in excellent agreement with the independently verified sample. |
| first_indexed | 2024-03-06T20:26:44Z |
| format | Journal article |
| id | oxford-uuid:2fa65827-fce9-4731-8856-5530f9775ea6 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:26:44Z |
| publishDate | 2006 |
| record_format | dspace |
| spelling | oxford-uuid:2fa65827-fce9-4731-8856-5530f9775ea62022-03-26T12:56:37ZElectroanalysis of trace manganese via cathodic stripping voltammetry: Exploration of edge plane pyrolytic graphite electrodes for environmental analysisJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2fa65827-fce9-4731-8856-5530f9775ea6EnglishSymplectic Elements at Oxford2006Welch, CBanks, CKomorsky-Lovric, SCompton, RThe determination of trace levels of manganese via cathodic stripping voltammetry at an edge plane pyrolytic graphite electrode (eppge) was evaluated for use in environmental analysis. The response of the eppge is compared with boron-doped diamond electrodes under quiescent conditions where the former is observed to have a three times higher sensitivity. Using this protocol with a stirred accumulation period, a detection limit of 14.2 nmol dm-3 and a sensitivity of 14.2 mol dm-3 A-1 is achieved with linearity from 25 to 250 nmol dm-3, based on a 120 seconds accumulation period. The response at a carbon paste electrode is also compared under the same conditions with the eppge found to be superior in terms of sensitivity, detection limits and reproducibility. The efficacy of the protocol utilising the eppge was assessed in the determination of manganese in a certified seawater reference material, NASS-5, from the National Research Council Canada, which was found to be in excellent agreement with the independently verified sample. |
| spellingShingle | Welch, C Banks, C Komorsky-Lovric, S Compton, R Electroanalysis of trace manganese via cathodic stripping voltammetry: Exploration of edge plane pyrolytic graphite electrodes for environmental analysis |
| title | Electroanalysis of trace manganese via cathodic stripping voltammetry: Exploration of edge plane pyrolytic graphite electrodes for environmental analysis |
| title_full | Electroanalysis of trace manganese via cathodic stripping voltammetry: Exploration of edge plane pyrolytic graphite electrodes for environmental analysis |
| title_fullStr | Electroanalysis of trace manganese via cathodic stripping voltammetry: Exploration of edge plane pyrolytic graphite electrodes for environmental analysis |
| title_full_unstemmed | Electroanalysis of trace manganese via cathodic stripping voltammetry: Exploration of edge plane pyrolytic graphite electrodes for environmental analysis |
| title_short | Electroanalysis of trace manganese via cathodic stripping voltammetry: Exploration of edge plane pyrolytic graphite electrodes for environmental analysis |
| title_sort | electroanalysis of trace manganese via cathodic stripping voltammetry exploration of edge plane pyrolytic graphite electrodes for environmental analysis |
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