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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. 40, No. 7, 2017, p. 711-847

 

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 2017, 40(7), 810-817

POLIMEROSSOMOS VERSUS LIPOSSOMOS: A EVOLUÇÃO DA "BALA MÁGICA"

Alexsandra Conceição Apolinário; Juliana de ALmeida Pachioni-Vasconcelos; Adalberto Pessoa Jr.; Carlota de Oliveira Rangel-Yagui

Amphiphilic block copolymers can self-aggregate in solution leading to a variety of nanostructures, including vesicles known as polymersomes.

http://dx.doi.org/10.21577/0100-4042.20170054

Publicado online: maio 15, 2017
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Artigos Quim. Nova 2017, 40(7), 711-719

 

USE OF MIP OES AND F AAS/AES FOR DETERMINATION OF Ca, K, Na AND Mg IN BRAZILIAN CREAM CHEESE

Leila M. N. Diniz; Thaiane S. Carrasco; Aline L. Medina; Anderson S. Ribeiro; Adriane M. Nunes


Development of two methods of sample preparation of Brazilian cream cheese ("requeijão") samples for elemental determination.

http://dx.doi.org/10.21577/0100-4042.20170049

Publicado online: maio 15, 2017
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Quim. Nova 2017, 40(7), 720-725

 

FIXAÇÃO DE CO2 EM EFLUENTE SALINO DE INDÚSTRIA PETROQUÍMICA

Leonardo F. Santos; André L. A. Santos; Sônia D. F. Rocha


CO2 reaction in brines: a possible way of having carbon dioxide transformed into carbonates forms.

http://dx.doi.org/10.21577/0100-4042.20170063

Publicado online: junho 13, 2017
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Quim. Nova 2017, 40(7), 726-732

 

EQUILÍBRIO QUÍMICO E CINÉTICA ENZIMÁTICA DA INTERAÇÃO DE α-AMILASE COM COMPOSTOS FENÓLICOS ENCONTRADOS EM CERVEJA

George Augusto V. de Oliveira; José Maurício Schneedorf Ferreira da Silva


Structure of alpha-amylase showing the inhibitory interaction of chlorogenic acid with the catalytic subsite in the enzyme.

http://dx.doi.org/10.21577/0100-4042.20170058

Publicado online: maio 19, 2017
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Quim. Nova 2017, 40(7), 733-738

 

A NOVEL RHODAMINE-BASED FLUORESCENCE CHEMOSENSOR CONTAINING POLYETHER FOR MERCURY (II) IONS IN AQUEOUS SOLUTION

Wenqi Du; Yu Cheng; Weixin Shu; Zhengjian Qi


Rhodamine-based fluorescence chemosensor containing polyether for mercury (II) ions.

http://dx.doi.org/10.21577/0100-4042.20170060

Publicado online: junho 1, 2017
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Quim. Nova 2017, 40(7), 739-744

 

AMPEROMETRIC DETERMINATION OF 8-CHLOROTHEOPHYLLINE, CAFFEINE, AND DIPHENHYDRAMINE IN A SINGLE RUN

Jhonys Machado Freitas; Thiago da Costa Oliveira; Rodrigo Alejandro Abarza Munoz; Eduardo Mathias Richter


A simple method for simultaneous determination of 8-chlorotheophylline (CTP), caffeine (CAF), and diphenhydramine (DIP) using batch injection analysis with multiple pulse amperometric detection (BIA-MPA).

http://dx.doi.org/10.21577/0100-4042.20170050

Publicado online: maio 15, 2017
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Quim. Nova 2017, 40(7), 745-751

 

CHARACTERIZATION OF ENALAPRIL AND RANITIDINE CHLORINATION BY-PRODUCTS BY LIQUID CHROMATOGRAPHY/HIGH-RESOLUTION MASS SPECTROMETRY AND THEIR TOXICITY EVALUATION

Frederico Jehár Oliveira Quintão; Mariana Pierotti de Souza; Silvana de Queiroz Silva; Sérgio Francisco Aquino; Robson José de Cássia Franco Afonso


This article reports the characterization of enalapril and ranitidine chlorination by-products by liquid chromatography/high-resolution mass spectrometry and evaluation of the cytotoxicities by MTT assay.

http://dx.doi.org/10.21577/0100-4042.20170061

Publicado online: junho 9, 2017
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Quim. Nova 2017, 40(7), 752-759

 

DETERMINAÇÃO RÁPIDA E SIMPLES DE CITRATO DE SILDENAFILA (VIAGRA® E GENÉRICOS) EMPREGANDO ELETRODO IMPRESSO DE CARBONO EM SISTEMAS FIA E BIA COM DETECÇÃO AMPEROMÉTRICA

Rafael S. Backes; Tiago J. Guedes; Wallans T. P. dos Santos; Rodrigo A. B. da Silva


This work presents two hydrodynamic amperometric methods for simple and fast determination of sildenafil citrate in pharmaceutical formulations by Batch Injection Analysis (BIA) and Flow Injection Analysis (FIA) with an electrochemical cell adapted for screen printed electrodes.

http://dx.doi.org/10.21577/0100-4042.20170047

Publicado online: maio 4, 2017
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Quim. Nova 2017, 40(7), 760-768

 

INIBIÇÃO À CORROSÃO DE AÇO-CARBONO EM MEIO SALINO PELO HETEROCICLO ISATINA VEICULADO EM MICROEMULSÕES

Ádna Dornelles Nicácio de Souza; Cátia Guaraciara Fernandes Teixeira Rossi; Tereza Neuma de Castro Dantas; Miguel Ângelo Fonseca de Souza; Djalan França de Lima; Fabrício Gava Menezes; Maria Aparecida Medeiros Maciel


Isatin as corrosion inhibitor loaded into microemulsion o/w type systems.

http://dx.doi.org/10.21577/0100-4042.20170051

Publicado online: maio 15, 2017
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Quim. Nova 2017, 40(7), 769-773

 

ESTUDO MECANÍSTICO DAS REAÇÕES FENTON E CUPRO-FENTON POR ANÁLISE VOLTAMÉTRICA IN SITU

Leidi C. Friedrich; Carmem Lúcia P. S. Zanta; Amilcar Machulek Jr.; Frank H. Quina


The addition of Cu(II) ions to classical Fenton reaction conditions is shown to accelerate the degradation of organic compounds. Voltammetric studies confirm the catalytic effect of catechol in the presence of Fe(III)/Fe(II) and Cu(II)/Cu(I).

http://dx.doi.org/10.21577/0100-4042.20170065

Publicado online: junho 13, 2017
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Quim. Nova 2017, 40(7), 774-780

 

ELUCIDATION OF THE ELECTRONIC SPECTRUM CHANGES OF KA-Al3+ COMPLEX BY POTENTIOMETRIC TITRATION, FTIR, 13C RMN AND QUANTUM MECHANICS

Mário S. Piantavini; Alan G. Gonçalves; Ângela C. L. B. Trindade; Miguel D. Noseda; Ana L. R. Mercê; Antonio E. H. Machado; Roberto Pontarolo


KA-Al3+ complex structures were studied and characterized by potentiometric and spectrophotometric titrations. Structures have the binding site composed mainly of oxygen atoms of C4 and C5.

http://dx.doi.org/10.21577/0100-4042.20170059

Publicado online: maio 19, 2017
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Quim. Nova 2017, 40(7), 781-784

 

PENETRAÇÃO E DISTRIBUIÇÃO DO CONSOLIDANTE PARALOID® B-72 EM CERÂMICA BRANCA ESTUDADA POR TOMOGRAFIA COM NÊUTRONS

Marco A. Stanojev Pereira; Reynaldo Pugliesi; Marcos L. G. Andrade; Maria I. Prudêncio


3D images of the Paraloid® B-72 distribution into the vessel maintained at air humidity of 35%.

http://dx.doi.org/10.21577/0100-4042.20170055

Publicado online: maio 16, 2017
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Quim. Nova 2017, 40(7), 785-790

 

DETERMINAÇÃO DE ENXOFRE EM SHAMPOO POR ESPECTROFOTOMETRIA UV-VIS: AVALIAÇÃO DE MÉTODOS DE PREPARO DE AMOSTRAS

Natalia J. Bielemann; Diogo L. R. Novo; Rodrigo M. Pereira; Julia E. Mello; Vanize C. Costa; Marcia F. Mesko


Determination of sulfur in shampoo by UV-Vis spectrophotometry after microwaveassisted wet digestion using diluted nitric acid.

http://dx.doi.org/10.21577/0100-4042.20170052

Publicado online: maio 15, 2017
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Revisão Quim. Nova 2017, 40(7), 791-809

 

SÍNTESES E PROPRIEDADES DE FÁRMACOS INIBIDORES DA TIROSINA QUINASE BCR-ABL, UTILIZADOS NO TRATAMENTO DA LEUCEMIA MIELOIDE CRÔNICA

Liviane D. de Azevedo; Mônica M. Bastos; Andressa Paula de Oliveira; Núbia Boechat


The five approved BCR-ABL Tyrosine Kinase inhibitors (TKI) used in Chronic Myeloid Leukemia (CML) are reviewed aiming the main synthetic routes, highlighting the advantages and disadvantages associated with them.

http://dx.doi.org/10.21577/0100-4042.20170027

Publicado online: março 9, 2017
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Nota Técnica Quim. Nova 2017, 40(7), 818-823

 

USO DA ESPECTROFOTOMETRIA UV-VIS PARA DIFERENCIAR AS COLORAÇÕES DO BIODIESEL DE PALMA E DO CORANTE MARCADOR DE ÓLEO DIESEL

Maria S. M. Quintino; Waldemar P. Oliveira Filho; Fábio S. Vinhado; Warley G. Santos; Rodrigo B. C. Dutra; Patrícia A. Oliveira; Patrícia K. G. Costa; Itânia P. Soares


Spectra obtained for different mixtures of palm biodiesel/diesel fuel containing red dye show that qualitative distinction is possible.

http://dx.doi.org/10.21577/0100-4042.20170044

Publicado online: abril 5, 2017
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Educação Quim. Nova 2017, 40(7), 824-832

 

SOLUBILIDADE E REATIVIDADE DE GASES

Luciana Almeida Silva; Luiz Souza Carvalho; Wilson Araújo Lopes; Pedro Afonso de Paula Pereira; Jailson B. de Andrade


The solubility of gases in a liquid solvent depends on the partial pressure of the gas on the liquid and on the possible liquid-gas reactions. One case that well illustrates this phenomenon is the CO2 dissolution in water in carbonated beverages.

http://dx.doi.org/10.21577/0100-4042.20170034

Publicado online: março 24, 2017
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Quim. Nova 2017, 40(7), 833-839

 

DETERMINAÇÃO DE FOSFATO EM REFRIGERANTES UTILIZANDO UM SCANNER DE MESA E ANÁLISE AUTOMATIZADA DE DADOS: UM EXEMPLO DIDÁTICO PARA ENSINO DE QUÍMICA

Heloisa Colzani; Quethelen Elizabeth Araujo Garcez Rodrigues; Claudia Fogaça; Jane Mary Lafayette Neves Gelinski; Edenir R. Pereira-Filho; Endler Marcel Borges


Phosphate determination using digital images.

http://dx.doi.org/10.21577/0100-4042.20170035

Publicado online: março 24, 2017
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Assuntos Gerais Quim. Nova 2017, 40(7), 840-847

 

PATENT ANALYSIS: A LOOK AT THE INNOVATIVE NATURE OF PLANT-BASED COSMETICS

Francine C. S. César; Fausto Carnevale Neto; Geciane S. Porto; Patrícia M. B. G. Maia Campos


The use of plants have become a trend in cosmetic market. Patent analysis can act as complementary tool to scientific knowledge guiding innovative research in cosmetic sciences.

http://dx.doi.org/10.21577/0100-4042.20170022

Publicado online: fevereiro 24, 2017
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