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Autores: informamos que, a partir do próximo fascículo (39/9), a revista Química Nova adotará a licença CC-BY. Mais informações a respeito dessa licença podem ser obtidas aqui.

Edição Atual vol. 39, No. 8, 2016, p. 893-1025


New submission procedures for OPEN ACCESS from March 4th, 2016

The Board of Directors of the Sociedade Brasileira de Química-SBQ (publisher of the Química Nova-QN) decided that from March 2016 the JBCS 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 2016, 39(8), 987-994

Clinical aspects of the poisoning by the pesticide endosulfan

Jiří PatočkaI,II; Qinghua WuIII,IV; Tanos C. C. FrançaIII,V,VI; Teodorico C. RamalhoVII; Rene PitaVIII; Kamil KučaII,III,V,*

Endosulfan is one of the most abundant organochlorine pesticides in the environment today. This highly toxic compound has a high fatality rate in humans when ingested accidentally or in suicidal cases.


Publicado online: junho 6, 2016
Artigos Quim. Nova 2016, 39(8), 893-900


Avaliação dos teores de Pb, Cd, Sn, Co, Hg, Mo e As em solos da península Fildes - Antártica

Bruna M. DalfiorI; Larissa D. RorizI; Reginaldo F. JúniorI; Antônio Carlos de FreitasIII; Heitor E. da SilvaIII; Maria Tereza W.D. CarneiroI; Marcus Vinícius V. J. LicinioII; Geisamanda P. BrandãoI,*

Fildes Peninsula, King George Island - Antarctica: monitoring of the concentrations of Pb, Cd, Sn, Co, Hg, Mo and As in soil samples.


Publicado online: agosto 1, 2016
Quim. Nova 2016, 39(8), 901-905


Analysis of a commercial portable lithium-ion battery under low current charge-discharge cycles

Stephany Pires da Silva; Paulo Rogério Catarini da Silva; Alexandre Urbano; Jair Scarminio*

Correlations between the charge stored into and extracted from a commercial cell phone battery, the charging protocols (CC and CC+CV), the discharging current intensity and the corresponding discharging time.


Publicado online: junho 17, 2016
Quim. Nova 2016, 39(8), 906-913


Application of thermal plasma for inertization of sludge produced during treatment of landfill leachate

Anelise Leal Vieira CubasI,*; Marina de Medeiros MachadoI; Marilia de Medeiros MachadoI; Elisa Helena Siegel MoeckeI; Ana Regina de Aguiar DutraII; Haidi FiedlerIII; Priscila BuenoIII

Landfill leachate commonly contains heavy metals due to the incorrect disposal of products. The aim of this study was to apply a treatment for leachate sludge involving the thermal plasma in which the inertization of metals into a vitreous silicate form occurs.


Publicado online: agosto 1, 2016
Quim. Nova 2016, 39(8), 914-918


Interaction of Chalcones with CT-DNA by spectrophotometric analysis and theoreticalsimulations

Ximena ZarateII; Eduardo SchottIII; Carlos A. EscobarIV; Roberto Lopez-CastroV; Cesar EcheverriaI,VII; Leonor Alvarado-SotoI,VI; Rodrigo Ramirez-TagleI,*

This research focuses on the capacity of a chalcone's family of interacting with Calf Thymus DNA. The interactions were determined by spectrophotometric analysis [Electronic titration spectra, emission titration spectra and viscometry] and computational calculations.


Publicado online: julho 8, 2016
Quim. Nova 2016, 39(8), 919-924


Análise da concentração e composição de aerossóis de queimadas no pantanal Mato-Grosso

Anna Carolinna Albino SantosI,*; Amanda FingerII; José de Souza NogueiraI; Leone Francisco Amorim CuradoI; Rafael da Silva PaláciosI; Vinicius Marcio Rodrigues PereiraI

Site in RPPN - SESC Pantanal between 16/04 to 23/10 2012 and 10/02 to 10/08 2013.


Publicado online: junho 10, 2016
Quim. Nova 2016, 39(8), 925-931


Microextração líquido-líquido dispersiva assistida por vortex e ultrassom aplicada à determinação de agrotóxicos triazinas, triazinonas e o triazol flutriafol em água

Jaqueline da Silva Duarte; Eliana Freire Gaspar de Carvalho Dores; Ricardo D. Villa*

The extracting solvent is effectively dispersed in the water sample by sequential agitation in vortex and ultrasound. This procedure ensures the effective microextraction of pesticides without addition of a disperser solvent.


Publicado online: junho 17, 2016
Quim. Nova 2016, 39(8), 932-935


Electrochemical oxidation of ethylene at PANI/Pt and Ag/PANI/Pt modified electrodes

Lenys FernándezI,*; Edison Omar MartínezII; Hicher ZambranoIII

Electrochemical oxidation of ethylene at: a) Pt, b) PANI/Pt and c) Ag/PANI/Pt electrodes.


Publicado online: julho 8, 2016
Quim. Nova 2016, 39(8), 936-943


Determinação de metais por técnicas de espectrometria atômica em amostras de carvão mineral e cinzas utilizando metodologia de superfície de resposta

Camila M. Oliz; Emanoelli R. Lopes; Aline L. Medina; Anderson S. Ribeiro; Adriane M. Nunes*

This paper presents a simple, low coast and safe method for determination of Cu, Fe, Na and Zn in coal and ash samples by techniques of atomic spectrometry.


Publicado online: julho 13, 2016
Quim. Nova 2016, 39(8), 944-950


Mechanistic aspects of photocatalytic activity of metalloporphyrin-titanium mixtures in microemulsions

Lorean MadrizI,*; Hermes CarreroI; Oswaldo NúñezII; Ronald VargasI; Julio HerreraI

C-Cl bond homolytic cleavage of 4-chlorophenol and further methylation promoted by titanium (IV) citrate under light irradiation.


Publicado online: agosto 5, 2016
Quim. Nova 2016, 39(8), 951-955


In vitro Cr(VI) speciation in synthetic saliva after releasing from orthodontic brackets using silica-APTES separation and GF AAS determination

Maciel S. LuzI,II; Alexandre L. SouzaII; Ana C. S. S. HaddadIII; André TartomanoIII; Pedro V. OliveiraI,*

Cr speciation in saliva, using silica-APTES separation and GF AAS for determination showed that up to 40% of the total element released from the orthodontic brackets used was Cr(VI).


Publicado online: julho 20, 2016
Quim. Nova 2016, 39(8), 956-961


Cr/S/TiO2-loaded hollow glass microspheres as an efficient and recyclable catalyst for the photocatalytic degradation of indigo carmine under visible light

Xiuli ZhangI; Yidong YinI,*; Zhibo SunI; Yingqiu DuII; Shichao MaI; Yan WuI

Cr/S/TiO2-loaded hollow glass microspheres for use in the photocatalytic degradation of indigo carmine under visible light.


Publicado online: julho 13, 2016
Quim. Nova 2016, 39(8), 962-967


Sulfonic acid-functionalized LUS-1: an efficient catalyst for one-pot synthesis of 2,4-diamino pyrimidine-5-carbonitrile derivatives

Mahshid RahimifardI; Ghodsi Mohammadi ZiaraniI,*,#; Alireza BadieiII

Propyl sulfonic acid functionalized LUS-1 was used as a recyclable heterogeneous catalyst in the synthesis of 2,4-diamino pyrimidine-5-carbonitriles via condensation reaction of aromatic aldehydes, malononitrile and guanidine carbonate in solvent-free condition.


Publicado online: junho 17, 2016
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Quim. Nova 2016, 39(8), 968-972


Precipitation reaction of clavulanic acid: thermodynamic and electronic study

Ana C. GranatoI,#,*; Edson B. CostaII; Wagner F. D. AngelottiIII; Geoffroy R. P. MalpassI,#; Marlei BarbozaI,#; Albérico B. F. da SilvaIV; Milan TrsicIV

In this study, two forms for industrial precipitation of clavulanic acid from the fermentation broth were thermodynamically and theoretically studied. The reactivity indexes correlate well with experimental observations.


Publicado online: junho 6, 2016
Quim. Nova 2016, 39(8), 973-978


The phenolic composition of the hepatoprotective and antioxidant fractions of Albizia lebbeck L.

Nadia M. SokkarI,II,*; Seham M. El-HawaryII; Amany M. SlemIII; Zeinab TalaatIV

LC-PDA-ESI-MS/MS is performed to explore the phenolic constituents of the hepatoprotective and antioxidant fractions of the leaves of Albizia lebbeck L.


Publicado online: junho 17, 2016
Quim. Nova 2016, 39(8), 979-986


Complexos de inclusão binários, ternários e quaternários contendo óleo essencial de Lippia sidoides

Cláudia R. F. Souza; Patrícia N. Ferraz-Freitas; Wanderley P. Oliveira*

The present study was aimed to improve aqueous solubility of a poorly water-soluble Lippia sidoides essential oil through the formation of inclusion complexes with beta-cyclodextrin (β-CD), a binary complex and the effect of addiction of surfactant and water soluble polymer obtained a multicomponent complex.


Publicado online: junho 10, 2016
Revisão Quim. Nova 2016, 39(8), 995-1006


Estratégias de síntese na descoberta de fármacos: o emprego da síntese orientada pela diversidade estrutural#

Diego Pereira Sangi*

This article shows the synthetic strategies used in drug discovery process, highlighting the principal approaches towards generating scaffold diversity in a Diversity-Oriented Synthesis.


Publicado online: maio 25, 2016
Nota Técnica Quim. Nova 2016, 39(8), 1007-1014


Validação de um método analítico para determinação de marcadores orgânicos geoquímicos em amostras de sedimentos marinhos

Edna Wisnieski#; Liziane M. M. Ceschim; César C. Martins*

An alternative method for determination of n-alkanes, sterols and n-alkanols in marine sediments, based on Soxhlet extraction, fractioning and clean up by adsorption chromatographic and gas chromatography.


Publicado online: junho 6, 2016
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Educação Quim. Nova 2016, 39(8), 1015-1018


Nanopartículas de Au em líquido iônico suportadas em filmes biopoliméricos: uma aula prática para investigação da atividade antimicrobiana

Camila C. de Quadros; Marcos F. Brunelli; Vinícius W. Faria; Carla W. Scheeren*

The graphical abstract show the colloidal dispersion of Au nanoparticles formed (left) in the experiment and the transmission electron microscopy image (right) of the Au nanoparticles of 11 ± 1.5 nm obtained.


Publicado online: maio 25, 2016
Quim. Nova 2016, 39(8), 1019-1025


Preparação de 1,2,4-oxadiazol: sequência didática aplicada em disciplina de síntese orgânica na graduação

Juliana L. L. Freire Regueira; Jucleiton J. R. de Freitas; João R. de Freitas Filho*

This work describes a teaching-learning sequence for the preparation of 1,2,4-oxadiazol mediated by microwave irradiation, employing domestic equipment.


Publicado online: junho 1, 2016
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