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.
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...
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.
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.
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.
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.
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.
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.
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.
Lenys FernándezI,*; Edison Omar MartínezII; Hicher ZambranoIII
Electrochemical oxidation of ethylene at: a) Pt, b) PANI/Pt and c) Ag/PANI/Pt electrodes.
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.
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.
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).
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.
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.
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.
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.
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.
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.
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.
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.
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.
On-line version ISSN 1678-7064 Printed version ISSN 0100-4042
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