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Desenvolvimento de processo de deslignificação da palha de milho assistida por ultrassom
(Universidade Federal de Santa Maria, 2022-05-20)
In this work, the ultrasound (US) was investigated in acid hydrolysis process for corn straw delignification, in comparison with the conventional process proposed by National Renewable Energy Laboratory (NREL). This procedure ...
Avaliação de processos extrativos para desmineralização de biomassa lignocelulósica
(Universidade Federal de Santa Maria, 2022-03-17)
This work evaluated lignocellulosic biomass demineralization processes (sugarcane
bagasse, sugarcane straw, energy cane, pine, and eucalyptus residues) using
ultrasonic energy, mechanical stirring, or only mild conditions ...
Patulina em maçãs armazenadas em atmosfera controlada dinâmica utilizando UPLC-MS/MS e monitoramento em supermercados
(Universidade Federal de Santa Maria, 2017-03-31)
The goal of this study was to evaluate the patulin contamination in post-harvest apples submitted to different storage conditions under controlled atmosphere (CA), in addition to apples and juices available in supermarkets. ...
Determinação multirresíduo de agrotóxicos em aveia empregando cromatografia líquida acoplada à espectrometria de massas em série
(Universidade Federal de Santa Maria, 2019-02-27)
Many pesticides are used for pest control during oat production and storage, making necessary to employ multi-class methods for pesticide residues determination. For this purpose, the QuEChERS method allows adequate sample ...
Desenvolvimento de métodos de preparo de amostras para a determinação de impurezas elementares em medicamentos de uso oral
(Universidade Federal de Santa Maria, 2019-08-02)
In this study, sample preparation methods were developed for the digestion of oral
pharmaceutical drugs used in the treatment of type 2 diabetes, with the objective of
quantifying elemental ...
Estudo fitoquímico e atividade biológica de Lupinus lanatus
(Universidade Federal de Santa Maria, 2011-01-10)
As a part of our ongoing search of new bioactive secondary metabolites of plant origin,
the aerial parts of Lupinus lanatus were subjected to phytochemical investigation.
Lupinus genus, belonging to the family of Leguminosae ...
Decomposição de coque, resíduo de vácuo e petróleo extrapesado por piroidrólise para a determinação de cloro
(Universidade Federal de Santa Maria, 2007-10-26)
In this work, a method for chlorine determination in petroleum coke, vacuum and atmospheric residues and heavy petroleum was developed. The pyrohydrolysis sample decomposition method was used, which consists of sample ...
Síntese regioespecífica de 1H-pirazolilquinolinas trifluormetil substituídas
(Universidade Federal de Santa Maria, 2004-07-27)
This work describes the synthesis of a serie of 4-(3-alkyl(aryl)-5-trifluoromethyl-1Hpyrazol-
1-yl)-7-chloroquinolines (6), from the cyclondensation reactions of 1,1,1-trifluoro-
4-methoxy-3-buten-2-ones (4) and ...
Método multirresíduo rápido para a determinação de agrotóxicos em abobrinha empregando QuEChERS modificado e UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2022-10-14)
In the last decades, the use of pesticides in Brazil and in the world has increased substantially, mainly due to the demand for food. Brazil stands out in the international scenario, mainly in the production and cultivation ...
Síntese de cloretos de 5-trifluormetil-1,2-dimetil-1H-pirazolíneos
(Universidade Federal de Santa Maria, 2002-10-15)
Não foi possível inserir o abstract.