In situ determination of urea in milk employing a portable and low-cost LED photometer

Show simple item record Suarez, Willian Toito Alvarenga Junior, Benedito Roberto de Franco, Mathews de Oliveira Krambeck Gabriel, Wesley Lira Oliveira, Denílson Mendes de Santos, Vagner Bezerra dos 2018-09-21T15:34:20Z 2018-09-21T15:34:20Z 2017-11-11
dc.identifier.issn 1936976X
dc.description.abstract A low-cost and portable LED photometer was developed and applied for the in situ determination of urea in milk. The determination was based on Berthelot’s reaction. After optimization, the best experimental variables, the detection limit and quantification limit were 1.8 × 10^−4 and 8.0 × 10^−4 mol L^−1, respectively. The percentage recovery varied between 95.6 and 105%. The paired t test was performed for the cow and goat milk determination and the results agreed at a 95% level of confidence for the in situ determination. Supported by the results, the analytical method based on LED photometer demonstrated that it can be employed for urea determination in food production for quality purpose, and small rural producers can evaluate the quality of herd feeding due to the easy handling, portability, fast instrumental response, and low cost of the materials used. en
dc.format pdf pt-BR
dc.language.iso eng pt-BR
dc.publisher Food Analytical Methods pt-BR
dc.relation.ispartofseries v. 11, n. 4, p. 1149– 1154, abr. 2018 pt-BR
dc.rights Springer Nature Switzerland AG. pt-BR
dc.subject LED photometer pt-BR
dc.subject Urea pt-BR
dc.subject Milk pt-BR
dc.subject Food control pt-BR
dc.title In situ determination of urea in milk employing a portable and low-cost LED photometer en
dc.type Artigo pt-BR

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  • Artigos [378]
    Artigos Técnico-científicos na área de Química

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