Source:http://linkedlifedata.com/resource/pubmed/id/18965399
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
4
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| pubmed:dateCreated |
2008-10-30
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| pubmed:abstractText |
The use of carbon paste electrodes modified with [Ru(bpy)(2)(PVP)(10)Cl]Cl for the mediated detection of nitrite is described. This surface modifier substantially lowers the overpotential for nitrite oxidation, hence permitting its determination at a lower potential. Various electrode characteristics were optimized, including the modifier loading and the monitoring potential, using batch amperometry. Standard calibration curves yielded slopes of 0.30 microA/microM over the linear range 5 x 10(-8)-5 x 10(-4)M nitrite with a detection limit of 3 x 10(-8)M (1.38 ppb) nitrite. The modified electrode response was shown to be relatively stable over a period of 5 days with a signal diminution of 8%. Electrode-to-electrode precision was measured as 11.4%. Flow-injection studies indicated the suitability of this electrode as a detector in flowing streams.
|
| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
|
| pubmed:month |
Apr
|
| pubmed:issn |
0039-9140
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| pubmed:author | |
| pubmed:issnType |
Print
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| pubmed:volume |
39
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| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
443-7
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| pubmed:year |
1992
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| pubmed:articleTitle |
Determination of nitrite based on mediated oxidation at a carbon paste electrode modified with a ruthenium polymer.
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| pubmed:affiliation |
School of Chemical Sciences, Dublin City University, Dublin 9, Ireland.
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| pubmed:publicationType |
Journal Article
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