Publication
Flow injection sequential speciation of free and total potassium in fortified wines
| dc.contributor.author | Rangel, António O. S. S. | |
| dc.contributor.author | Tóth, Ildikó V. | |
| dc.date.accessioned | 2011-10-14T14:45:04Z | |
| dc.date.available | 2011-10-14T14:45:04Z | |
| dc.date.issued | 1996 | |
| dc.description.abstract | A flow injection system for the potassium speciation in fortified wines, using two detectors placed in series, is described. The free, or ionized form, is monitored in a tubular-shaped potassium ion-selective electrode, and the total potassium content in a flame emission spectrometer used as end-of-line detector. Potassium determinations can be carried out in a linear range from 300 to 2000 mg 1-1, with a sampling-rate of 60 samples per hour. The results obtained were comparable to the conventional procedures using the same detection systems, and the precision was good (relative standard deviations below 3.1%o for free potassium and 3.8% for total potassium). | por |
| dc.identifier.citation | RANGEL, António O. S. S. ; TÓTH, Ildikó V. - Flow injection sequential speciation of free and total potassium in fortified wines. Analytical Sciences. ISSN 0910-6340. 12 (1996) 887-891 | por |
| dc.identifier.doi | 10.2116/analsci.12.887 | |
| dc.identifier.uri | http://hdl.handle.net/10400.14/6091 | |
| dc.language.iso | eng | por |
| dc.peerreviewed | yes | por |
| dc.publisher | The Japan Society of Analytical Chemistry / The Japan Society for Analytical Chemistry | por |
| dc.subject | Flow injection | por |
| dc.subject | Potassium speciation | por |
| dc.subject | Wine | por |
| dc.subject | Potentiometry | por |
| dc.subject | Flame emission spectrometry | por |
| dc.title | Flow injection sequential speciation of free and total potassium in fortified wines | por |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| person.familyName | Santos Silva Rangel | |
| person.familyName | Tóth | |
| person.givenName | António Osmaro | |
| person.givenName | Ildikó | |
| person.identifier.ciencia-id | D61D-7CFB-178A | |
| person.identifier.orcid | 0000-0002-6486-8947 | |
| person.identifier.orcid | 0000-0002-7342-1063 | |
| person.identifier.rid | G-1733-2010 | |
| person.identifier.scopus-author-id | 7004827387 | |
| person.identifier.scopus-author-id | 35512332800 | |
| rcaap.rights | restrictedAccess | por |
| rcaap.type | article | por |
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| relation.isAuthorOfPublication | 7889563f-f3fc-4057-a97c-b51425b4dc46 | |
| relation.isAuthorOfPublication.latestForDiscovery | 467be022-fd9c-4549-aa48-48ebcc1098eb |