dc.contributor.author | Zapata Arráez, Félix | |
dc.contributor.author | Ortega Ojeda, Fernando Ernesto | |
dc.contributor.author | García Ruiz, Carmen | |
dc.contributor.author | González Herráez, Miguel | |
dc.date.accessioned | 2018-09-05T11:33:15Z | |
dc.date.available | 2018-09-05T11:33:15Z | |
dc.date.issued | 2018-07-08 | |
dc.identifier.bibliographicCitation | Zapata, F., Ortega-Ojeda, F., García-Ruiz, C., González-Herráez, M.
Selective monitoring of oxyanion mixtures by a flow system with Raman detection
(2018) Sensors (Switzerland), 18 (7), art. no. 2196 | en |
dc.identifier.issn | 1424-8220 | |
dc.identifier.uri | http://hdl.handle.net/10017/34200 | |
dc.description.abstract | Raman spectroscopy is a selective detection system scarcely applied for the flow analysis of solutions with the aim of detecting several compounds at once without a previous separation step. This work explores the potential of a portable Raman system in a flow system for the selective detection of a mixture of seven oxyanions (carbonate, sulphate, nitrate, phosphate, chlorate, perchlorate, and thiosulphate). The specific bands of these compounds (symmetric stretching Raman active vibrations of carbonate at 1068 cm−1, nitrate at 1049 cm−1, thiosulphate at 998 cm−1, phosphate at 989 cm−1, sulphate at 982 cm−1, perchlorate at 935 cm−1, and chlorate at 932 cm−1) enabled their simultaneous detection in mixtures. Although the oxyanions’ limit of detection (LOD) was rather poor (in the millimolar range), this extremely simple system is very useful for the single-measurement detection of most of the oxyanions in mixtures, without requiring a previous separation step. In addition, quantitative determination of the desired oxyanion can be performed by means of the corresponding calibration line. These are important advantages for controlling in-line processes in industries like those manufacturing fertilizers, pharmaceuticals, chemicals, or food, among others. | en |
dc.description.sponsorship | Ministerio de Educación y Ciencia | es_ES |
dc.format.mimetype | application/pdf | en |
dc.language.iso | eng | en |
dc.publisher | MDPI | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Flow analysis | en |
dc.subject | Oxyanions | en |
dc.subject | Raman detection | en |
dc.title | Selective monitoring of oxyanion mixtures by a flow system with Raman detection | en |
dc.type | info:eu-repo/semantics/article | en |
dc.subject.eciencia | Ciencias tecnológicas | es_ES |
dc.subject.eciencia | Electrónica | es_ES |
dc.subject.eciencia | Technology | en |
dc.subject.eciencia | Electronics | en |
dc.contributor.affiliation | Universidad de Alcalá. Departamento de Electrónica | es_ES |
dc.relation.publisherversion | https://doi.org/10.3390/s18072196 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | en |
dc.identifier.doi | 10.3390/s18072196 | |
dc.relation.projectID | info:eu-repo/grantAgreement/MEC//FPU14%2F00790/ES | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | en |
dc.identifier.publicationtitle | Sensors | |