dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T14:20:20Z
dc.date.accessioned2022-10-05T15:20:16Z
dc.date.available2014-05-20T14:20:20Z
dc.date.available2022-10-05T15:20:16Z
dc.date.created2014-05-20T14:20:20Z
dc.date.issued2008-01-01
dc.identifierJournal of The Brazilian Chemical Society. São Paulo: Soc Brasileira Quimica, v. 19, n. 8, p. 1531-1537, 2008.
dc.identifier0103-5053
dc.identifierhttp://hdl.handle.net/11449/26111
dc.identifier10.1590/S0103-50532008000800012
dc.identifierS0103-50532008000800012
dc.identifierWOS:000261658800012
dc.identifierS0103-50532008000800012.pdf
dc.identifier5978908591853524
dc.identifier3192125098361121
dc.identifier0000-0003-0197-7369
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3899138
dc.description.abstractA green spectrophotometric analytical method for determination of formaldehyde in commercial samples was designed and investigated. Replacement of hazardous reagents was explored to attain the clean chemistry standards. The method is based on formaldehyde reaction with chromotropic acid in the presence of magnesium sulphate producing a stable complex Mg(2+)/cyclotetrachromotropylene (lambda(max) = 535 nm). To the best of our knowledge, there are no reports on the use of the above mentioned reaction for this determination. The experimental conditions were optimized by the response surface methodologies. Beer's Law is obeyed in a concentration range of 3 to 11 mg L(-1) of formaldehyde with a correlation coefficient of 0.999. The proposed method was applied for the determination of formaldehyde in commercial disinfectants and deffrizing hair products. The results were favorably compared with those of the official method, with good accuracy and precision.
dc.languageeng
dc.publisherSoc Brasileira Quimica
dc.relationJournal of the Brazilian Chemical Society
dc.relation1.444
dc.relation0,357
dc.rightsAcesso aberto
dc.sourceWeb of Science
dc.subjectformaldehyde
dc.subjectMg(2+)/cyclotetrachromotropylene
dc.subjectdisinfectants
dc.subjectdeffrizing products
dc.subjectgreen analytical chemistry
dc.titleA Simple and Green Analytical Method for the Determination of Formaldehyde
dc.typeArtigo


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