Probing trace levels of prometryn solutions: from test samples in the lab toward real samples with tap water

Página do item simplificado
dc.contributor.authorRubira, Rafael J. G. [UNESP]
dc.contributor.authorCamacho, Sabrina A. [UNESP]
dc.contributor.authorAoki, Pedro H. B. [UNESP]
dc.contributor.authorPaulovich, Fernando V.
dc.contributor.authorOliveira, Osvaldo N.
dc.contributor.authorConstantino, Carlos J. L. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2018-12-11T17:26:40Z
dc.date.available2018-12-11T17:26:40Z
dc.date.issued2016-03-01
dc.description.abstractGrowing food demand has been addressed by protecting crops from insects, weeds, and other organisms by increasing the application of pesticides, thus increasing the risk of environmental contamination. Many pesticides, such as the triazines, are poorly soluble in water and require trace detection methods, which are normally achieved with high-cost sophisticated chromatography techniques. Here, we combine surface-enhanced Raman scattering (SERS) with multidimensional projection techniques to detect the toxic herbicide prometryn in ultrapure, deionized, and tap waters. The SERS spectra for prometryn were recorded with good signal-to-noise ratio down to 5 × 10−12 mol/L in ultrapure water, approaching single-molecule levels, and 5 × 10−9 mol/L in tap water. The latter is one order of magnitude below the threshold allowed for drinking water. In addition to providing a fingerprint of prometryn molecules at low concentrations, SERS is advantageous compared to other methods since it does not require pretreatment or chemical separation. The multidimensional projection methods and the detection procedure with SERS are entirely generic, and may be extended to any other pesticide or water contaminants, thus allowing environmental control to be potentially low cost if portable Raman spectrophotometers are used.en
dc.description.affiliationFaculdade de Ciências e Tecnologia UNESP Univ Estadual Paulista
dc.description.affiliationSão Carlos Institute of Physics University of São Paulo, CP 369
dc.description.affiliationInstitute of Mathematical Sciences and Computing University of São Paulo, CP 668
dc.description.affiliationUnespFaculdade de Ciências e Tecnologia UNESP Univ Estadual Paulista
dc.format.extent3182-3190
dc.identifierhttp://dx.doi.org/10.1007/s10853-015-9628-2
dc.identifier.citationJournal of Materials Science, v. 51, n. 6, p. 3182-3190, 2016.
dc.identifier.doi10.1007/s10853-015-9628-2
dc.identifier.file2-s2.0-84953346400.pdf
dc.identifier.issn1573-4803
dc.identifier.issn0022-2461
dc.identifier.lattes7384168674539702
dc.identifier.orcid0000-0003-4701-6408
dc.identifier.scopus2-s2.0-84953346400
dc.identifier.urihttp://hdl.handle.net/11449/177693
dc.language.isoeng
dc.relation.ispartofJournal of Materials Science
dc.relation.ispartofsjr0,807
dc.relation.ispartofsjr0,807
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.titleProbing trace levels of prometryn solutions: from test samples in the lab toward real samples with tap wateren
dc.typeArtigo
unesp.author.lattes7384168674539702[3]
unesp.author.lattes6118325967319836[6]
unesp.author.orcid0000-0003-4701-6408[3]
unesp.author.orcid0000-0002-5921-3161[6]
unesp.departmentFísica, Química e Biologia - FCTpt

Arquivos

Pacote Original
Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
2-s2.0-84953346400.pdf
Tamanho:
1.86 MB
Formato:
Adobe Portable Document Format
Descrição:
Baixar

Coleções

Presidente Prudente - FCT - Faculdade de Ciências e Tecnologia