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dc.contributor.author | Bucur, Bogdan | es_ES |
dc.contributor.author | Catalá-Icardo, Mónica | es_ES |
dc.contributor.author | Martinez Calatayud, Jose | es_ES |
dc.date.accessioned | 2016-11-18T13:41:18Z | |
dc.date.available | 2016-11-18T13:41:18Z | |
dc.date.issued | 2006-02 | |
dc.identifier.issn | 0035-3930 | |
dc.identifier.uri | http://hdl.handle.net/10251/74374 | |
dc.description.abstract | [EN] The paper deals with the spectrophotometric determination of ammonia with a reverse Flow Injection Analysis assembly. The procedure is based on the modified reaction of Berthelot in which the sample acting as carrier merges with NaClO in basic medium; then a second reagent (salicylic acid, sodium hydroxide and sodium nitroprusside) is inserted into the resulting mixture. The calibration graph was linear from 0.5 to 20 ppm; L.O.D. 0.3 ppm NH4+; the sample throughput was 32 h(-1) and the repeatability was 0.7% (n = 9, 5 ppm). The day-to day reproducibility resulted in an RSD of the slope of 4.2% (n = 8). The method was applied to fertilizers and pharmaceutical formulations. The separation and pre-concentration of the analyte was also tested by addition of a separation device in which the ammonia passed into an acceptor solution containing a pH indicator and the calibration graph obtained was linear from 0.1 to 5 ppm NH4+. | es_ES |
dc.language | Inglés | es_ES |
dc.publisher | Editura Academiei Romane | es_ES |
dc.relation.ispartof | Revue Roumaine de Chimie | es_ES |
dc.rights | Reserva de todos los derechos | es_ES |
dc.subject | Ammonia analysis | es_ES |
dc.subject | reverse Flow Injection Analysis (rFIA) | es_ES |
dc.subject | Modified Berthelot reaction | es_ES |
dc.subject | Gas diffusion separation | es_ES |
dc.subject | Spectrophotometric determination | es_ES |
dc.subject.classification | QUIMICA ANALITICA | es_ES |
dc.title | Spectrophotometric determination of ammonium by an rFIA assembly | es_ES |
dc.type | Artículo | es_ES |
dc.rights.accessRights | Cerrado | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Escuela Politécnica Superior de Gandia - Escola Politècnica Superior de Gandia | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Departamento de Química - Departament de Química | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres | es_ES |
dc.description.bibliographicCitation | Bucur, B.; Catalá-Icardo, M.; Martinez Calatayud, J. (2006). Spectrophotometric determination of ammonium by an rFIA assembly. Revue Roumaine de Chimie. 51(12):101-108. http://hdl.handle.net/10251/74374 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | http://revroum.lew.ro/2006/02/ | es_ES |
dc.description.upvformatpinicio | 101 | es_ES |
dc.description.upvformatpfin | 108 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 51 | es_ES |
dc.description.issue | 12 | es_ES |
dc.relation.senia | 33762 | es_ES |