ISSN:0100-4042
ISSN:1678-7064 on line
Volume 38, Número 6, 2015
Artigo
757 bis(4-Fluorophenylsulfonyldithiocarbimato)zincate(II) salts:
new antifungals for the control of Botrytis blight
Alexandre A. Oliveira, Marcelo R. L. Oliveira, Mayura
M. M. Rubinger, Elisa L. Piló, Daniele C. Menezes and
Laércio Zambolim
Petri dishes containing colonies of Botrytis cinerea after 3 days of incubation
at 22 oC, were treated with tetraphenylphosphonium bis(4-fluorophenylsulphon
yldithiocarbimate) zincate(II) at six different concentrations and compared to a
control (negative treatment check).
762 Influência da idade das folhas de Eugenia uniflora L. na
composição química do óleo essencial
Frances R. Santos, Raimundo Braz-Filho e Rosane N.
Castro
Oxygenated sesquiterpenes, furanodiene and germacrone were predominant in
the essential oil of Eugenia uniflora and distinguished with respect to the age
of the leaves.
769 Chemical constituents from the stem bark of Annona pickelii
(Annonaceae)
Emmanoel V. Costa, Marília F. C. Sampaio, Marcos J.
Salvador, Angelita Nepel and Andersson Barison
Twenty compounds, including three lignans and twelve alkaloids, were found
in stem bark A. pickelli and the NMR data for several alkaloids were reviewed.
777 Caracterização de nanofios de germânio sintetizados utilizando cobre como catalisador
Riama C. Gouveia, Hanay Kamimura, Rafael Munhoz,
Ariano De G. Rodrigues, Edson R. Leite e Adenilson J.
Chiquito
Ge nanowires grown from Cu catalyst. Morphological analysis showed that the
nanowires are composed of single crystalline germanium with long range order.
Electrical characterization confirmed the semiconductor behavior and identified
VRH as the dominant transport mechanism.
iv
Quim. Nova
781 Development of oral nifedipine-loaded polymeric nanocapsules: physicochemical characterisation, photostability studies,
in vitro and in vivo evaluation
Monika P. Tagliari, Andrea Granada, Marcos A. S. Silva,
Hellen K. Stulzer, Betina G. Zanetti-Ramos, Daniel
Fernandes, Izabella T. Silva, Claudia Mª O. Simões, Regina
Sordi, Jamil Assreuy and Valdir Soldi
Development of nifedipine nanocapsules by interfacial deposition: a strategy to
improve drug stability.
787 Association of branched polyethylene imine with surfactants
in aqueous solution
Ismael C. Bellettini, Renato Eising, Arlindo C. Felippe,
Josiel B. Domingos, Edson Minatti and Vanderlei G.
Machado
Change of the pH of aqueous solutions of SDS–PEI, TTAB–PEI (●) and NaBr–PEI (●).
794 Identificação de compostos orgânicos em lixiviado de aterro
sanitário municipal por cromatografia gasosa acoplada a
espectrometria de massas
Eliane S. Rigobello, Ana P. J. Scandelai, Beatriz L. Corso
e Célia R. G. Tavares
The LLE landfill leachate was evaluated under different conditions. The analyses
carried out with a gas chromatograph coupled with a mass spectrometer allowed
the identification of organic compounds in the leachate in the study.
801 Determinação voltamétrica simultânea de besilato de anlodipino e hidroclorotiazida em amostras de urina sintética
utilizando um eletrodo de diamante dopado com boro
Laís P. Silva, Bruna C. Lourencao e Orlando FatibelloFilho
Voltammetric behavior of amlodipine besylate and hydrochlorothiazide on borondoped diamond electrode with hydrogen or oxygen terminations.
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807 Desenvolvimento de um método de preparo de amostras para
avaliação de matérias-primas de materiais escolares
José A. Garcia e Edenir R. Pereira-Filho
Evaluation of sample preparation method using microwave radiation, targeting
the extraction of Ba, Cd, Cr, Hg and Pb in raw material samples of school supplies.
813 Phytochemical and phylogenetic analysis of Spondias (Anacardiaceae)
Cristiane Pereira, Letícia L. de Oliveira, Ricardo
Gonçalves, Ana C. F. Amaral, Ricardo M. Kuster and
Cassia M. Sakuragui
The presence of flavonol 3-O-glycosides can be considered a synapomorphy
of American Spondias, and the presence of rhamnetin 3-O-rutinoside coupled
with phylogenetic data is evidence for the separation of the two Atlantic forest
Spondias species in a distinct clade.
Revisão
817 Biossensoriamento estocástico via nanoporo proteico individual no desenvolvimento de ferramentas analíticas
Juliana P. Aguiar, Janilson J. S. Júnior, Dijanah C.
Machado, Maria C. A. Melo e Cláudio G. Rodrigues
Alpha-toxin as prototype of a single protein nanopore for detection, quantification
and characterization of molecules in aqueous systems.
828 Produção do biometanol via gaseificação de biomassa lignocelulósica
Paulo Eichler, Fernando Santos, Marcilio Toledo, Patrícia
Zerbin, Guilherme Schmitz, Camila Alves, Lúcias Ries e
Fernando Gomes
Simplified fluxogram for biomethanol production processes with lignocellulosic
biomass.
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Quim. Nova
Nota Técnica
836 Análise Multivariada de Imagens na química: um experimento para determinação do pH de águas potáveis
Deangelis Damasceno, Thiago G. Toledo, Mariana S.
Godinho, Cassiano P. da Silva, Sérgio B. de Oliveira e
Anselmo E. de Oliveira
A Multivariate Image Analysis (MIA) laboratory activity was proposed estimating
pH of drinking water samples from its digital images after adding bromothymol
blue as a pH indicator, and using the PLS multivariate calibration method.
842 Avaliação de diferentes reagentes colorimétricos para a determinação de formaldeído em amostras de ar em ambientes
internos
Darllene Silveira, Jessica O. Fernandes e Elisabete A.
Pereira
Formaldehyde reacts with MBTH to form an azine, which is oxidized by a ferric
chloride in acid media to form a blue cationic dye. Formaldehyde reacts with
Purpald reagent in alkaline media to form a purple anion dye. The Nash reagent
method relies on the reaction of formaldehyde with acetylacetone in acidified
ammonium acetate to form a yellow product.
848 Pesticide residues in conventionally and organically grown
tomatoes in Espírito Santo (Brazil)
Gleissy M. A. D. A. dos Santos, Luciano J. Q. Teixeira,
Olavo S. Pereira Júnior, Alexandre R. dos Santos, Marcio
Fronza, Ary G. Da Silva e Rodrigo Scherer
The objective of this paper was to monitor pesticide residues in conventionally
and organically grown tomatoes from different markets in Vitória and Vila Velha
cities (Espírito Santo, Brazil).
852 Avaliação metrológica da curva analítica para determinação
do teor de enxofre em baixíssimas concentrações em óleo
diesel S-10
Shirley L. de Farias, Lívio G. da Costa, Rodrigo F. Calili,
Ramon M. Rios e Elcio C. de Oliveira
This work, on the determination of very low concentrations of sulfur content in
diesel S-10 by MWDXRF, breaks two paradigms: every curve should be adjusted
by an unweighted linear regression and all samples must be read in the central
part of the analytical curve.
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859 Prototipagem de microrreatores fotocatalíticos e testes de
fotodegradação de corantes orgânicos
Omar Pandoli, Tommaso Del Rosso, Vinicius M. Santos,
Renan de S. Rezende e Bojan A. Marinkovic
Schematic diagram depicting adopted procedure for low-cost microfabrication
of a PDMS/Glass microreactor.
864 Degradação térmica de tocoferol e produtos de oxidação em
diferentes classes de azeite de oliva utilizando espectroscopia
UV-Vis e MCR-ALS
Rhayanna P. Gonçalves, Paulo H. Março e Patrícia
Valderrama
The instrumental signals (D), relating to components of olive oil samples, were
isolated and resolved by MCR-ALS in terms of quantitative contributions on the
pure components (C) and spectral profiles (ST), respectively.
Educação
868 Desenvolvimento de fármacos por hibridação molecular: uma
aula prática de química medicinal usando comprimidos de
paracetamol e sulfadiazina e a ferramenta virtual SciFinder®
Cleônia R. M. Araújo, Carlos A. Leite Filho, Victória L. dos
A. Santos, Gabriela L. de A. Maia e Arlan de A. Gonsalves
Drug development by molecular hybridization: a medicinal chemistry practice
class using paracetamol and sulfadiazine tablets and the virtual tool SciFinder®.
874 Acetanilida: síntese verde sem solvente
Silvio Cunha, Otelício B. dos S. da Costa, Lourenço L. B.
de Santana e Wilson A. Lopes
A solvent-free synthesis of acetanilide without the use of additives was developed
in the context of green chemistry.