Publication
Sulfadiazine-potentiometric sensors for flow and batch determinations of sulfadiazine in drugs and biological fluids
| dc.contributor.author | Kamel, Ayman H. | |
| dc.contributor.author | Almeida, Sofia A. A. | |
| dc.contributor.author | Sales, M. Goreti F. | |
| dc.contributor.author | Moreira, Felismina T. C. | |
| dc.date.accessioned | 2013-11-21T15:25:27Z | |
| dc.date.available | 2013-11-21T15:25:27Z | |
| dc.date.issued | 2009 | |
| dc.description.abstract | New PVC membrane electrodes for the determination of sulfadiazine (SDZ) are presented. The electrodes are fabricated with conventional and tubular configurations with a graphite-based electrical contact, and no internal reference solution. The selective membranes consist of bis(triphenylphosphoranilidene)ammonium·SDZ (electrode A), tetraoctylammonium bromide (electrode B), or iron(II)-phthalocyanine (FePC) (electrode C) electroactive materials dispersed in a PVC matrix of o-nitrophenyl octyl ether (o-NPOE) plasticizer. The sensors A, B, and C displayed linear responses over the concentration ranges 1.0*10-2 – 1.0*10–5, 1.0*10–2 – 7.5*10–6, and 3.2*10–2 – 7.0* 10–6 mol l–1 (detection limits of 1.09, 2.04 and 0.87 mg ml–1) with anionic slopes of –57.3 ± 0.1, –46.7 ± 0.5, and –65.1 ± 0.2 mV decade–1, respectively. No effect from pH was observed within 4.0 – 5.5, 4.8 – 10, and 4.5 – 8, respectively, and good selectivity was found. The sensors were applied to the analysis of pharmaceuticals and biological fluids in steady state and in flow conditions. | por |
| dc.identifier.doi | 10.2116/analsci.25.365 | pt_PT |
| dc.identifier.uri | http://hdl.handle.net/10400.22/2890 | |
| dc.language.iso | eng | por |
| dc.peerreviewed | yes | por |
| dc.publisher | Japan Society for Analytical Chemistry | por |
| dc.relation.ispartofseries | Analytical Sciences; Vol. 25 | |
| dc.relation.publisherversion | https://www.jstage.jst.go.jp/article/analsci/25/3/25_3_365/_article | por |
| dc.title | Sulfadiazine-potentiometric sensors for flow and batch determinations of sulfadiazine in drugs and biological fluids | por |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 371 | por |
| oaire.citation.startPage | 365 | por |
| oaire.citation.title | Analytical Sciences | |
| oaire.citation.volume | Vol. 25 | por |
| person.familyName | Moreira | |
| person.givenName | Felismina | |
| person.identifier | 1589429 | |
| person.identifier.ciencia-id | C917-6A46-A270 | |
| person.identifier.orcid | 0000-0003-4237-8952 | |
| person.identifier.scopus-author-id | 23486193000 | |
| rcaap.rights | openAccess | por |
| rcaap.type | article | por |
| relation.isAuthorOfPublication | 9c13153d-a73a-49ff-b7f6-c9733bc6725e | |
| relation.isAuthorOfPublication.latestForDiscovery | 9c13153d-a73a-49ff-b7f6-c9733bc6725e |