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EDIÇÃO ATUAL vol. 45, No. 4, 2022
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Movimento química pós 2022: construção de um plano de ação para que a química e seus atores impactem a sustentabilidade e soberania no Brasil
Ingrid F. SilvaI; Pedro H.P. NascimentoII; Rochel M. LagoII; Mozart N. RamosIII; Fernando GalembeckIV; Romeu C. Rocha FilhoV,*; Ana Paula C. TeixeiraII,*
The process of formulating an action plan with the aim that chemistry and its actors contribute for the sustainable and sovereign development of Brazil in the coming years is described in detail.
http://dx.doi.org/10.21577/0100-4042.20170898
Movimento química pós 2022, aspirando ao desenvolvimento sustentável e soberano do brasil ajudado pela química
Romeu Cardozo Rocha Filho
http://dx.doi.org/10.21577/0100-4042.20170899
Total access: 757
Predictive model for determining the mass of BHA and BHT to be added in commercial biodiesel
Felipe Y. SavadaI; Hagata C. SilvaI; Ana Carolina G. MantovaniII; Letícia T. ChendynskiIII; Karina B. AngilelliI; Dionísio BorsatoI,*
Biodiesel samples with different masses of synthetic antioxidants were analyzed. A mathematical model was created to predict the antioxidant masses to be added to biodiesel in order to reach the legislation values.
http://dx.doi.org/10.21577/0100-4042.20170827
Detailed evaluation of pervaporation modeling to obtaining anhydrous ethanol
Camila Cavalcanti; Wagner Ramos; Romildo Brito; Karoline Brito*
Flowsheet of pervaporation in Aspen Plus™.
http://dx.doi.org/10.21577/0100-4042.20170840
Natural radionuclides in water using inductively coupled plasma - sector field mass spectrometry
Elizabeth Teresita Romero GuzmánI,II,*; José Luis Iturbe GarcíaI; María de Jesús Marín AllendeII; Héctor Hernández MendozaIII,IV; Lázaro Raymundo Reyes GutiérrezV
The global water situation is currently working on guidelines for establishing reference levels for radioactivity in drinking water including naturally occurring radioactivity consumed by humans. Simultaneous analysis of radionuclides in water was performed by ICP-SFMS.
http://dx.doi.org/10.21577/0100-4042.20170841
Infravermelho portátil na região do próximo (NIR) aplicado no controle de qualidade de cafés adulterado por borra
Radigya M. CorreiaI; Pedro H. CunhaI; Bárbara Z. AgnolettiI; Lucas L. PereiraII; Fábio L. PartelliIII; Paulo R. FilgueirasI; Valdemar Lacerda Jr.I; Wanderson RomãoI,IV,V,*
Portable NIR associated with chemometric tools to determine the quality and authenticity of coffee samples from the state of Espirito Santo adulterated by the coffee grounds.
http://dx.doi.org/10.21577/0100-4042.20170850
Characterization and identification of bioactive compounds in agro-food waste flours
Camila Gonçalves RodriguesI; Viviane Dias Medeiros SilvaI; Anna Cláudia de Freitas e LoyolaI; Mauro Ramalho SilvaI; Rodinei AugustiII; Julio Onesio Ferreira MeloIII,*; Lanamar de Almeida CarlosIV; Camila Argenta FanteI
The residues were dried in a tray dryer at 70 °C by 12, after being crushed in a blender of domestic use with the aid of mill attachment. The analyses were: total carotenoids, condensed tannins, total phenolics, antioxidant activity, phenolic profile and paper sprayfingerprint.
http://dx.doi.org/10.21577/0100-4042.20170853
Eletrocoagulação/eletrofloculação para tratamento de águas residuárias: eletrodos não convencionais e acoplamento de técnicas
Luís Henrique Araújo Grecco*; Bárbara Camila de Araújo Souza; Maria Valnice Boldrin Zanoni
Electrocoagulation system with a cylindrical reactor (right). On the left, there is a representation of the region between the electrodes where the products of the cathodic and anodic reactions are released, and the insoluble metallic hydroxide is formed.
http://dx.doi.org/10.21577/0100-4042.20170846
A química de produtos naturais aplicados a reveladores de impressões digitais latentes
Amanda F. LeitzkeI; Lucas M. BerneiraI; Bruno N. da RosaI; Bruna C. MoreiraI; Kristiane de C. MariottiII; Dalila VenzkeI,*; Claudio M. P. PereiraI,*
This review provides an overview of the application of a series of natural products in the development of latent fingermarks for forensic purposes.
http://dx.doi.org/10.21577/0100-4042.20170843
Atividade anti-Alzheimer de substâncias oriundas de produtos naturais e de origem sintética: alguns exemplos importantes dos últimos 20 anos
Ana Beatriz Silva VellosaI; Valdinei Bueno Lima FilhoII; Breno Almeida SoaresII,*; Nailton M. Nascimento-JúniorI,*
As a way to contribute to the knowledge regarding to Alzheimer's disease, this review describes molecular modeling and medicinal chemistry aspects of natural product derivatives and synthetic compounds developed in the last 20 years.
http://dx.doi.org/10.21577/0100-4042.20170860
Comparando o desempenho de dois analisadores de massas (FT-ICR MS & LTQ MS): uma aula experimental sobre análise de compostos orgânicos
Marcos V. V. LyrioI; Amanda E. FeuI; Larissa C. MottaI; Laura P. R. FigueroaI; Leonardo BoasquevisqueI; Roberta T. PintoI; Ana Caroline L. RosaI; Heryson T. L. de ArantesI; Ramon R. T. BottocimI; Victor da R. FonsecaI; Nayara A. SantosI; Valdemar Lacerda Jr.I; Eustaquio V. R. CastroI; Wanderson RomãoI,II,*
The performance of two mass analyzers (FT-ICR and LTQ) was tested on low (Mw = 165-679 Da) and high (Mw = 783-8.58kDa) molecular weight molecules, e.g., Phenacetin, Procaine, Benzocaine, Caffeine anhydrous, Lidocaine, two porphyrins, and two proteins standards, and an oil sample.
http://dx.doi.org/10.21577/0100-4042.20170832
Promovendo o envolvimento e a aprendizagem de estudantes no ensino superior: uma experiência com a escrita científica na disciplina de química inorgânica
Gilson DeFreitas-Silva; Roberta Guimarães Corrêa; Ana Luiza de Quadros*
Students' involvement in creative writing of scientific texts should be encouraged throughout the entire undergraduate course. Here we describe an activity developed in the Inorganic Chemistry course.
http://dx.doi.org/10.21577/0100-4042.20170854
Experimentação articulada às tecnologias digitais de informação e comunicação: problematizações de conhecimentos na formação de professores de química
Renata Isabelle Guaita; Fábio Peres Gonçalves*
This work about training of chemistry teachers discussed about Digital Information and Communication Technologies in chemistry experimentation.
http://dx.doi.org/10.21577/0100-4042.20170859
As malsucedidas buscas de minerais em Minas Gerais
Luciano E. FariaI,*; Carlos Alberto L. FilgueirasII
How could historical chemical analyzes have confused iron minerals, either with copper or with cobalt minerals?
http://dx.doi.org/10.21577/0100-4042.20170844
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