Você está no menu de acessibilidade

Utilize este identificador para citar ou criar um link para este item: http://acervodigital.unesp.br/handle/11449/25741
Registro de metadados completo
Campo DCValorIdioma
dc.contributor.authorGu, Jiyan-
dc.contributor.authorOliveira, Silvana R.-
dc.contributor.authorDonati, George L.-
dc.contributor.authorGomes Neto, José Anchieta-
dc.contributor.authorJones, Bradley T.-
dc.date.accessioned2014-05-20T14:19:04Z-
dc.date.accessioned2016-10-25T17:40:51Z-
dc.date.available2014-05-20T14:19:04Z-
dc.date.available2016-10-25T17:40:51Z-
dc.date.issued2011-04-01-
dc.identifierhttp://dx.doi.org/10.1021/ac1027897-
dc.identifier.citationAnalytical Chemistry. Washington: Amer Chemical Soc, v. 83, n. 7, p. 2526-2531, 2011.-
dc.identifier.issn0003-2700-
dc.identifier.urihttp://hdl.handle.net/11449/25741-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/25741-
dc.description.abstractTungsten coil atomic emission spectrometry is an ideal technique for field applications because of its simplicity, low cost, low power requirement, and independence from cooling systems. A new, portable, compact design is reported here. The tungsten coil is extracted from an inexpensive 24 V, 250 W commercial light bulb. The coil is housed in a small, aluminum cell. The emission signal exits from a small aperture in the cell, while the bulk of the blackbody emission from the tungsten coil is blocked. The resulting spectra exhibit extremely low background signals. The atomization cell, a single lens, and a hand-held charge coupled device (CCD) spectrometer are fixed on a 1 x 6 x 30 cm ceramic base. The resulting system is robust and easily transported. A programmable, miniature 400 W solid-state constant current power supply controls the temperature of the coil. Fifteen elements are determined with the system (Ba, Cs, Li, Rb, Cr, Sr, Eu, Yb, Mn, Fe, Cu, Mg, V, Al, and Ga). The precision ranges from 4.3% to 8.4% relative standard deviation for repetitive measurements of the same solution. Detection limits are in the 0.04 to 1500 mu g/L range. Accuracy is tested using standard reference materials for polluted water, peach leaves, and tomato leaves. For those elements present above the detection limit, recoveries range from 72% to 147%.en
dc.description.sponsorshipNational Science Foundation-
dc.description.sponsorshipDepartment of Homeland Security through NSF-
dc.description.sponsorshipDepartment of Homeland Security through DHS-
dc.format.extent2526-2531-
dc.language.isoeng-
dc.publisherAmer Chemical Soc-
dc.sourceWeb of Science-
dc.titleRugged, Portable Tungsten Coil Atomic Emission Spectrometeren
dc.typeoutro-
dc.contributor.institutionWake Forest Univ-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationWake Forest Univ, Dept Chem, Winston Salem, NC 27109 USA-
dc.description.affiliationSão Paulo State Univ, UNESP, Dept Analyt Chem, BR-14801970 Araraquara, SP, Brazil-
dc.description.affiliationUnespSão Paulo State Univ, UNESP, Dept Analyt Chem, BR-14801970 Araraquara, SP, Brazil-
dc.description.sponsorshipIdNSF: CBET 0736214-
dc.description.sponsorshipIdDHS: 2008-DN-077-ARI020-03-
dc.identifier.doi10.1021/ac1027897-
dc.identifier.wosWOS:000288887700019-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofAnalytical Chemistry-
Aparece nas coleções:Artigos, TCCs, Teses e Dissertações da Unesp

Não há nenhum arquivo associado com este item.
 

Itens do Acervo digital da UNESP são protegidos por direitos autorais reservados a menos que seja expresso o contrário.