Determination of Total Sulfur in Agricultural Samples by High-Resolution Continuum Source Flame Molecular Absorption Spectrometry
dc.contributor.author | Virgilio, Alex [UNESP] | |
dc.contributor.author | Raposo, Jorge L. [UNESP] | |
dc.contributor.author | Cardoso, Arnaldo Alves [UNESP] | |
dc.contributor.author | Nobrega, Joaquim A. | |
dc.contributor.author | Gomes Neto, José Anchieta [UNESP] | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.contributor.institution | Universidade Federal de São Carlos (UFSCar) | |
dc.date.accessioned | 2014-05-20T15:33:16Z | |
dc.date.available | 2014-05-20T15:33:16Z | |
dc.date.issued | 2011-03-23 | |
dc.description.abstract | The usefulness of molecular absorption was investigated for the determination of total sulfur (S) in agricultural samples by high-resolution continuum source flame molecular absorption spectrometry. The lines for CS at 257.595, 257.958, and 258.056 nm and for SH at 323.658, 324.064, and 327.990 nm were evaluated. Figures of merit, such as linear dynamic range, sensitivity, linear correlation, characteristic concentration, limit of detection, and precision, were established. For selected CS lines, wavelength-integrated absorbance equivalent to 3 pixels, analytical curves in the 100-2500 mg L-1 (257.595 nm), 250-2000 mg L-1 (257.958 nm), and 250-5000 mg L-1 (258.056 nm) ranges with a linear correlation coefficient better than 0.9980 were obtained. Results were in agreement at a 95% confidence level (paired t test) with those obtained by gravimetry. Recoveries of S in fungicide and fertilizer samples were within the 84-109% range, and the relative standard deviation (n = 12) was typically < 5%. | en |
dc.description.affiliation | São Paulo State Univ UNESP, Inst Chem, Dept Analyt Chem, BR-14801970 São Paulo, Brazil | |
dc.description.affiliation | Universidade Federal de São Carlos (UFSCar), Dept Chem, BR-13560970 São Paulo, Brazil | |
dc.description.affiliationUnesp | São Paulo State Univ UNESP, Inst Chem, Dept Analyt Chem, BR-14801970 São Paulo, Brazil | |
dc.description.sponsorship | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
dc.description.sponsorship | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | |
dc.format.extent | 2197-2201 | |
dc.identifier | http://dx.doi.org/10.1021/jf104296d | |
dc.identifier.citation | Journal of Agricultural and Food Chemistry. Washington: Amer Chemical Soc, v. 59, n. 6, p. 2197-2201, 2011. | |
dc.identifier.doi | 10.1021/jf104296d | |
dc.identifier.issn | 0021-8561 | |
dc.identifier.lattes | 9165109840414837 | |
dc.identifier.lattes | 8708735699846578 | |
dc.identifier.uri | http://hdl.handle.net/11449/41946 | |
dc.identifier.wos | WOS:000288401800010 | |
dc.language.iso | eng | |
dc.publisher | Amer Chemical Soc | |
dc.relation.ispartof | Journal of Agricultural and Food Chemistry | |
dc.relation.ispartofjcr | 3.412 | |
dc.relation.ispartofsjr | 1,269 | |
dc.rights.accessRights | Acesso restrito | |
dc.source | Web of Science | |
dc.subject | Total sulfur | en |
dc.subject | fungicide | en |
dc.subject | fertilizer | en |
dc.subject | flame molecular absorption spectrometry | en |
dc.subject | high-resolution continuum source atomic absorption spectrometry | en |
dc.title | Determination of Total Sulfur in Agricultural Samples by High-Resolution Continuum Source Flame Molecular Absorption Spectrometry | en |
dc.type | Artigo | |
dcterms.license | http://pubs.acs.org/page/policy/nih/index.html | |
dcterms.rightsHolder | Amer Chemical Soc | |
unesp.author.lattes | 9165109840414837[3] | |
unesp.author.lattes | 8708735699846578 | |
unesp.author.orcid | 0000-0003-2046-995X[3] | |
unesp.campus | Universidade Estadual Paulista (Unesp), Instituto de Química, Araraquara | pt |
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