JBCS



6:01, ter jul 16








Autores: A partir do fascículo 39/9 a revista Química Nova adotou a licença CC-BY. Mais informações a respeito dessa licença podem ser obtidas aqui.

Edição Atual vol. 42, No. 5, 2019, p. 473-594

 

Submission procedures for OPEN ACCESS

The Board of Directors of the Sociedade Brasileira de Química-SBQ (publisher of the Química Nova-QN) decided that QN will adopt the full open access format in which authors are required to cover part of the publication costs for their articles. See more...



Artigo de Capa
Quim. Nova 2019, 42(5), 527-545

Laser induced-breakdown spectroscopy (LIBS): histórico, fundamentos, aplicações e potencialidades

Vinicius C. Costa; Amanda S. Augusto; Jeyne P. Castro; Raquel C. Machado; Daniel F. Andrade; Diego V. Babos; Marco A. Sperança; Raimundo R. Gamela; Edenir R. Pereira-Filho*

LIBS applications in a myriad of samples: agriculture, food and electronic waste.

http://dx.doi.org/10.21577/0100-4042.20170325

Publicado online: março 11, 2019
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Artigos Quim. Nova 2019, 42(5), 473-484

 

Síntese e avaliação das atividades fotoprotetora, citotóxica e antiviral contra o Zika Vírus de derivados triazólicos da benzofenona

Ângela M. A. LimaI; Róbson R. TeixeiraI,*; Bianca F. da SilvaI; Raoni P. SiqueiraII; Ítalo E. P. da SilvaIII; Edjon G. SantosIII; Maria Cecília FernandesI; Victor Hugo Sousa GonçalvesII; Gustavo C. BressanII; Tiago Antonio de Oliveira MendesII; Sérgio O. de PaulaIII; Adílson Vidal CostaIV; Marcelo H. dos SantosI


A series of triazolic benzophenone derivatives were synthesized and had their photoprotective, cytotoxic and antiviral against Zika Virus activities evaluated.

http://dx.doi.org/10.21577/0100-4042.20170365

Publicado online: maio 14, 2019
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Quim. Nova 2019, 42(5), 485-488

 

Phytotoxic constituents from endophytic fungus Xylaria cubensis associated with Eugenia brasiliensis

Carolina R. BiasettoI; Andressa SomensiI; Viviane de C. P. AbdallaII; Lucas M. de AbreuIII; Sonia C. J. GualtieriII; Ludwig H. PfenningIV; Vanderlan da S. BolzaniI; Angela R. AraujoI,*


Phytotoxic constituents and other compounds isolated from Xylaria cubensis.

http://dx.doi.org/10.21577/0100-4042.20170367

Publicado online: maio 16, 2019
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Quim. Nova 2019, 42(5), 489-496

 

Aplicação da espectroscopia raman na caracterização de minerais pertencentes a uma geocoleção

Adriele R. SantosI,II; Denise B. MenezesIII; Javier EllenaI,*; e Marcelo B. AndradeI


Raman Spectra of three pertaining samples of a mineral collection, correctly identified in this study by their mineral composition as calcite [CaCO3], spodumene [LiAlSi2O6] and muscovite [KAl2(Si3Al)O10(OH,F)2].

http://dx.doi.org/10.21577/0100-4042.20170358

Publicado online: abril 18, 2019
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Quim. Nova 2019, 42(5), 497-504

 

Study of the Chromium(VI) removal from aqueous systems by cobalt nanoparticles

Patricia G. Leles; Mayra A. Nascimento; Jean C. Cruz; Paloma V. F. de Sous; Renata P. Lopes*


The Cr(VI) removal by Co-NPs occurs initially by the adsorption of the Cr(VI) species on the surface of NPs-Co. The Cr(VI) is reduced to Cr(III) on the surface of the Co-NPs. Also occurs the formation of Cr(OH)3, whose species are co-precipitated under the surface of the NPs-Co.

http://dx.doi.org/10.21577/0100-4042.20170363

Publicado online: maio 8, 2019
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Quim. Nova 2019, 42(5), 505-512

 

Ring opening polymerization of L-lactide with two different zinc(II) phenoxy-imine complexes as initiators

Alana L. C. OliveiraI; Leonardo C. FerreiraI; Marcos L. DiasI,*; Rodrigo S. BitzerII; Marco A. C. NascimentoII


Two zinc(II) complexes containing phenoxy-imine ligands were synthesized and used as initiators in bulk ring opening polymerization (ROP) of L-lactide (LA) to produce high stereoregular poly(lactic acid).

http://dx.doi.org/10.21577/0100-4042.20170362

Publicado online: abril 30, 2019
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Quim. Nova 2019, 42(5), 513-521

 

Characterization of silicon-aluminum-zirconium oxide obtained by the sol-gel process

Cristiano Nunes da SilvaI; José Márcio Siqueira JúniorII; Amanda Garcez VeigaI; Germildo Juvenal MuchaveIII; Donato Alexandre Gomes ArandaIII; Júlio Carlos AfonsoI; Emerson Schwingel RibeiroI,*


Synthesis and full characterization of a ternary oxide prepared by the sol-gel process followed by two washing procedures. A promising material for many applications such as dye/metal ion adsorption from effluents, among other applications.

http://dx.doi.org/10.21577/0100-4042.20170364

Publicado online: maio 8, 2019
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Quim. Nova 2019, 42(5), 522-526

 

A new validated method for determination of roflumilast in tablet by CZE-UV

Tufan Güray*,#


In this study, new, rapid and sensitive capillary zone electrophoresis (CZE) method for the determination of roflumilast (RFL) developed. This validated method is the first example based on the determination of RFL by CZE.

http://dx.doi.org/10.21577/0100-4042.20170371

Publicado online: maio 27, 2019
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Revisão Quim. Nova 2019, 42(5), 546-559

 

Metabolômica microbiana: inovações e aplicações

João Raul BelinatoI,II; Jaqueline Moraes BazioliI,III; Alessandra SussuliniI,II; Fabio AugustoI,II; Taícia Pacheco FillI,*


Microbial metabolomics has been applied in several microbiological areas. The metabolomics workflow mainly involves quenching and extraction of metabolites, instrumental analysis, processing and data analysis, all of these steps acting together essentially.

http://dx.doi.org/10.21577/0100-4042.20170324

Publicado online: fevereiro 27, 2019
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Nota Técnica Quim. Nova 2019, 42(5), 560-565

 

Magnetometria in-situ para caracterização de materiais eletrodepositados

Vinícius C. De Franco*; João E. Schmidt


This paper presents a technical approach for in-situ magnetic properties studies of materials electrodeposits onto some types of substrates.

http://dx.doi.org/10.21577/0100-4042.20170366

Publicado online: maio 14, 2019
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Quim. Nova 2019, 42(5), 566-569

 

Thermogravimetric and ftir analyzes of corn cob pyrolysis

Elías Ricardo Durango PadillaI; Gabriela Tami NakashimaI; Ana Larissa Santiago HanstedII; Luis Ricardo Oliveira SantosI; João Lucio de BarrosIII; Andrea Cressoni De ContiIV; Fabio Minoru YamajiI,*


In this study the pyrolysis process of corn cob was investigated using thermogravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FTIR).

http://dx.doi.org/10.21577/0100-4042.20170360

Publicado online: abril 18, 2019
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Educação Quim. Nova 2019, 42(5), 570-579

 

Dai-me agô (licença) para falar de saberes tradicionais de matriz africana no ensino de química

Anna M. C. Benitea*; Gustavo A. A. Faustino; Juvan P. Silva; Claudio R. M. Benite


We used plant phytochemical contributions in African matrix religions as contextualization elements for the teaching of chemistry.

http://dx.doi.org/10.21577/0100-4042.20170351

Publicado online: abril 1, 2019
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Assuntos Gerais Quim. Nova 2019, 42(5), 580-594

 

A contribuição do Brasil para a descoberta de um novo elemento químico - o paládio

Luciano E. FariaI,II; Carlos A. L. FilgueirasI,*


The discovery of palladium was confirmed in minerals from Minas Gerais, containing Pd in natural gold alloys, as in the sample shown above.

http://dx.doi.org/10.21577/0100-4042.20170349

Publicado online: março 21, 2019
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