Publication
Simple methodology for methylmercury and inorganic mercury determinations by high-performance liquid chromatography-cold vapour atomic fluorescence spectrometry
| dc.contributor.author | Ramalhosa, Elsa | |
| dc.contributor.author | Río-Segade, Susana | |
| dc.contributor.author | Pereira, Eduarda | |
| dc.contributor.author | Vale, Carlos | |
| dc.contributor.author | Armando, Duarte | |
| dc.date.accessioned | 2011-04-05T09:13:07Z | |
| dc.date.available | 2011-04-05T09:13:07Z | |
| dc.date.issued | 2001 | |
| dc.description.abstract | An analytical methodology was developed to separate and quantify methylmercury (MeHg) and inorganic mercury by high-performance liquid chromatography (HPLC)-cold vapour atomic fluorescence spectrometry (CV-AFS). The use of UV oxidation of the organic forms of mercury, the tin(II) chloride reduction in acidic medium of mercury and the introduction of a water vapour trap based on H2SO4/CaCl2 resulted in a low detection limit (DL) (10 +/- 2 pg, mean value +/- S.D.). The apparatus was operationally optimised through the modified simplex method leading to an increase of the signal by a factor of 2. The method performance has been tested by determining the MeHg concentration in a sediment certified reference material (CRM) and the results were statistically indistinguishable from the certificate value (alpha = 0.05) both for the mean value and S.D. | por |
| dc.identifier.citation | Ramalhosa, Elsa; Río-Segade, Susana; Pereira, Eduarda; Vale, Carlos; Armando, Duarte (2001). Simple methodology for methylmercury and inorganic mercury determinations by high performance liquid chromatography-cold vapour atomic fluorescence spectrometry. Analytica Chimica Acta. ISSN 0003-2670. 448:1-2, p. 135-143 | por |
| dc.identifier.doi | 10.1016/S0003-2670(01)01317-4 | |
| dc.identifier.issn | 0003-2670 | |
| dc.identifier.uri | http://hdl.handle.net/10198/3946 | |
| dc.language.iso | eng | por |
| dc.peerreviewed | yes | por |
| dc.publisher | Elsevier | por |
| dc.relation.ispartofseries | 448; | |
| dc.subject | Methylmercury | por |
| dc.subject | Cold vapour atomic fluorescence spectrometry | por |
| dc.subject | Liquid chromatography | por |
| dc.subject | UV radiation | por |
| dc.subject | Simplex optimisation | por |
| dc.title | Simple methodology for methylmercury and inorganic mercury determinations by high-performance liquid chromatography-cold vapour atomic fluorescence spectrometry | por |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 143 | por |
| oaire.citation.startPage | 135 | por |
| oaire.citation.title | Analytica Chimica Acta | por |
| person.familyName | Ramalhosa | |
| person.givenName | Elsa | |
| person.identifier.ciencia-id | 1A1D-FC05-A05D | |
| person.identifier.orcid | 0000-0003-2503-9705 | |
| person.identifier.scopus-author-id | 6602978189 | |
| rcaap.rights | openAccess | por |
| rcaap.type | article | por |
| relation.isAuthorOfPublication | d74be6c0-1703-4f77-bd81-e289ec981ee3 | |
| relation.isAuthorOfPublication.latestForDiscovery | d74be6c0-1703-4f77-bd81-e289ec981ee3 |