Oxidative Photolysis
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Development and validation of a stability-indicating LC-UV and LC-MS/MS methods for quantitative analysis of anisomycin and identification of degradation products
ABSTRACT Multifunctional drug anisomycin was subjected to forced degradation in accordance with International Conference on Harmonisation (ICH) guidelines for the first time. The drug was exposed to the recommended stress conditions of hydrolysis (acidic, alkaline and neutral), oxidation, thermal stress and photolysis, in order to investigate its stability.
Braz. J. Pharm. Sci.. Publicado em: 26/07/2018
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2. BTEX: DESENVOLVIMENTO DE BARRAS DE EXTRAÇÃO SORTIVA, DETERMINAÇÃO EM EFLUENTE HOSPITALAR E DEGRADAÇÃO POR MEIO DE FOTOCATÁLISE HETEROGÊNEA COM TiO2 SUPORTADO EM POLÍMEROS / BTEX: DEVELOPMENT OF BARS SORPTIVE EXTRACTION, DETERMINATION IN HOSPITAL EFFLUENT AND DEGRADATION BY HETEROGENEOUS PHOTOCATALYSIS WITH TIO2 SUPPORTED IN POLYMERS.
In this work were developed low cost bars of sorptive extraction, using commercial adhesive based on polydimethylsiloxane (PDMS) for the preconcentration and determination of benzene, toluene, ethylbenzene and xylene (BTEX) in effluent from the University Hospital of Santa Maria (HUSM). It was applied multivariate fractional factorial design (26-2) to invest
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2012
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3. ESTUDO FOTOQUÍMICO DA AÇÃO ANTI-RADICALAR DE COMPOSTOS POLIFENÓLICOS EMPREGANDO ESPECTROFOTOMETRIA E HPLC-UV
The interest in antioxidants has increased considerably in recent years as molecules that reduce lipid peroxidation may minimize or inhibit the oxidative damage caused to DNA, proteins and carbohydrates. Flavonoids, a group of secondary metabolites widely distributed in the plant kingdom, have properties of anti-inflammatory, antibacterial, antiviral, anti-a
Publicado em: 2010
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4. Avaliação de tecnicas de decomposição enzimatica e fotolise oxidativa no preparo de mel para analise por espectrometria de emissão optica em plasma de argonio com acoplamento / Evaluation of techniques of enzymatic decomposition and oxidative photolysus in honey sample preparation for the analysis by inductively coupled plasma optical emission spectrometry
A determinação de elementos metálicos em alimentos ricos em açúcar é um desafio analítico devido a interferência da matriz. Diluições das amostras podem minimizar este efeito, por outro lado, podem reduzir as concentrações dos elementos metálicos abaixo do limite de detecção. Assim, o pré-tratamento é usualmente necessário para destruir ou
Publicado em: 2009
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5. Uso de processos oxidativos avançados e ferro elementar na remediação de agua subterranea contendo compostos organoclorados / Use of advanced oxidation process and zero valent ironinremediation of groundwater containing chlorinated compounds
The remediation of groundwater containing organochlorine compounds was evaluated in this work using UV (photolysis), Fenton (H2O2/Fe) and photo-Fenton (UV/H2O2/Fe). A reductive system using zero valent iron aiming the reductive dehalogenation of the compounds has also been tested. All the experiments were performed using an upflow reactor operating in a reci
Publicado em: 2005
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6. Fotodegradação de compostos organicos presentes em ambientes aquaticos naturais e suas interações com os metais cobre, ferro e cadmio
Photodegradation of natural organic compounds ubiquitous in samples from the Atibaia River, sewage, sea (São Sebastião - S.P.) and comercial humic acid was investigated in laboratory, where the photolysis condition was similar to that of natural systems. A synthetic sample (tryptophan) has been used as a model to validate the methods as well as photolysis
Publicado em: 1988
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7. Peroxone chemistry: Formation of H2O3 and ring-(HO2)(HO3) from O3/H2O2
The recent observation [Wentworth, P., Jones, L. H., Wentworth, A. D., Zhu, X. Y., Larsen, N. A., Wilson, I. A., Xu, X., Goddard, W. A., Janda, K. D., Eschenmoser, A. & Lerner, R. A. (2001) Science 293, 1806–1811] that antibodies form H2O2 from 1O2 plus H2O was explained in terms of the formation of the H2O3 species that in the antibody reacts with a secon
National Academy of Sciences.