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Development of spectrophotometric method for the analysis of paraformaldehyde in commercial and industrial disinfectants
(Editora Unesp, 2002-01-01)
This paper describes a spectrophotometric method for the paraformaldehyde analysis in industrial and commercial disinfectant samples using chromotropic acid, concentrated hydrochloridric acid and hydrogen peroxide. The ...
Desenvolvimento de método espectrofotométrico para análise de paraformaldeído em saneantes comerciais e industriais
(2002-12-01)
This paper describes a spectrophotometric method for the paraformaldehyde analysis in industrial and commercial disinfectant samples using chromotropic acid, concentrated hydrochloridric acid and hydrogen peroxide. The ...
Forensic investigation of formaldehyde in illicit products for hair treatment by dad‐hplc: a case study
(Journal of Forensic Sciences, 2018)
Determination of formaldehyde in cosmetic products using gas-diffusion microextraction coupled with a smartphone reader
(2019-08-07)
The use of digital image-based methods in analytical determinations has been reported in several areas of science such as clinical, food and pharmaceutical analysis. These determinations have the advantages of low cost, ...
Desenvolvimento de método espectrofotométrico para análise de paraformaldeído em saneantes comerciais e industriais
(Editora Unesp, 2002-01-01)
O presente artigo descreve uma metodologia espectrofotométrica para a análise de paraformaldeído presente em amostras de saneantes comerciais e industriais, utilizando-se ácido cromotrópico (ACT), ácido clorídrico concentrado ...
Desenvolvimento de método espectrofotométrico para análise de paraformaldeído em saneantes comerciais e industriais
(Editora Unesp, 2002-01-01)
O presente artigo descreve uma metodologia espectrofotométrica para a análise de paraformaldeído presente em amostras de saneantes comerciais e industriais, utilizando-se ácido cromotrópico (ACT), ácido clorídrico concentrado ...
Spectrofluorimetric determination of formaldehyde in air after collection onto silica cartridges coated with Fluoral P
(Elsevier, 2004)
In the present work, a sensitive and selective fluorimetric method for formaldehyde determination in air samples is described. The method is based in the reaction between formaldehyde and Fluoral P producing 3,5-diacetyl ...
Nanopartículas de lignina kraft para modificação do adesivo ureia-formaldeído para colagem de madeiraKraft lignin nanoparticles for modification of the urea-formaldehyde adhesive for wood bonding
(Universidade Federal de ViçosaCiência Florestal, 2022)