issn 0103-5053 journal of the brazilian chemical society...
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Vol. 26, No. 10, October, 2015
ISSN 0103-5053JBCSJournal of the Brazilian Chemical Society
Higher ozone concentrations are observed during weekends in big cities and Rio de Janeiro case is detailed for 2012 and 2013. During weekends the low nitrogen oxide emissions reduce the ozone consumption by this molecule, despite the reduction on the primary pollutant concentrations, which indicated that a reduction in vehicle emissions occurred over the weekends. The weekend effect occurred in all of the three evaluated stations, with greater intensity at the Campo Grande and Irajá stations.. Details are presented in the Article Understanding Ozone Concentrations During Weekdays and Weekends in the Urban Area of the City of Rio de Janeiro by Eduardo M. Martins, Anna C. L. Nunes and Sergio M. Corrêa on page 1967.
Contents
Articles1967 Understanding Ozone Concentrations During Weekdays and
Weekends in the Urban Area of the City of Rio de JaneiroEduardo M. Martins, Anna C. L. Nunes and Sergio M. Corrêa
Graphical AbstractThe lower NO emission during weekends promotes ozone accumulation in
Rio de Janeiro city
J. Braz. Chem. Soc.iv
1981 Determination of Essential, Non-Essential, and Potentially Toxic Elements in Graviola (Annona muricata L.) Pulp by ICP OES and GF AASGislayne A. R. Kelmer, Angerson N. Nascimento and Pedro V. Oliveira
Graphical AbstractEssential, nonessential and potentially toxic elements were determined
in graviola pulp by inductively coupled plasma optical emission spectrometry (ICP OES) and graphite furnace atomic absorption
spectrometry (GF AAS). Graviola can be considered a good source of B, Cu, K, Mg and Mn
1976 Cytotoxic Alkaloids from Hippeastrum solandriflorum Lindl. Kaline R. Carvalho, Alison B. Silva, Maria Conceição M. Torres, Francisco Chagas L. Pinto, Larissa A. Guimarães, Danilo D. Rocha, Edilberto R. Silveira, Letícia V. Costa-Lotufo, Raimundo Braz-Filho and Otília Deusdênia. L. Pessoa
Graphical AbstractOne new homolycorine-type alkaloid, 2a-10ba-dihydroxy-9-O-
demethylhomolycorine, in addition to seven known were isolated from the bulbs of Hippeastrum solandriflorum (Amaryllidaceae). Their
structures were determined by spectrometric methods. Two compounds exhibited significant cytotoxic activity
1988 Determination of Cd, Ni and V in Spices by Solid Sampling High-Resolution Continuum Source Graphite Furnace Atomic Absorption SpectrometryAlex Virgilio, Jardes F. Rêgo, Ariane I. Barros and José A. Gomes Neto
Graphical AbstractA direct solid sampling high-resolution continuum source graphite
furnace atomic absorption spectrometry (HR-CS GF AAS) procedure with calibration using aqueous standards was employed for the determination
of Cd, Ni and V in spices
SI online
1994 Effects of Types of Washing and Peeling in Relation to Pesticide Residues in TomatoesGraziela C. R. M. Andrade, Sérgio H. Monteiro, Jeane G. Francisco, Leila A. Figueiredo, Aderbal A. Rocha and Valdemar L. Tornisielo
Graphical AbstractQuick, easy, cheap, effective, rugged and safe (QuEChERS) was used to determine pesticides in tomato after washing treatments. Liquid chromatography tandem mass spectrometry (LC-MS/MS) in dynamic
multiple-reaction monitoring mode (DMRM) was used for the detection of compounds. Washing and peeling before consumption contributes to
reduce pesticide residues in tomato
2003 Preparation of a Nitrite Electrochemical Sensor Based on Polyaniline/Graphene-Ferrocenecarboxylic Acid Composite Film Modified Glass Carbon Electrode and its Analytical Application Yuli Wei, Fang Fang, Wu Yang, Hao Guo, Xiuli Niu and Lijun Sun
Graphical AbstractA nitrite electrochemical sensor was prepared by depositing polyaniline
(PANI) on graphene (GR) and ferrocenecarboxylic acid (FCA) modified electrode. The modified electrode has a highly catalytic activity for the
oxidation of NO2- and was applied to detect NO2
- sensitively
vVol. 26, No. 10, 2015
2022 Oxidative Stress Parameters, Related Trace Elements Levels and Proteomics in Soybean Seeds in Order to Get a Better Assessment of Their QualityJosefina Cardoso, Ignacio Machado, Juan O. Irigoyen, Marco A. Z. Arruda, Inés Viera, Mariela Pistón and María H. Torre
Graphical AbstractAntioxidant systems, Fe, Cu, Zn, Mn and Ni levels and proteomics in soybean seeds of different performance in field were assessed. Basal
superoxide content and Zn level contribute to predict a possible poor performance in field
2035 Development of a Selective and Sensitive Sensor for Urate Determination Based on Tris(1,10-phenantroline)copper(II) Bis(tetracyanoquinodimethanide) Adsorbed on Carbon NanotubesDilton M. Pimentel, Fernando M. de Oliveira, Wallans T. P. dos Santos, Lauro T. Kubota, Flávio S. Damos and Rita C. S. Luz
Graphical AbstractA new electrode based on carbon nanotube and Cu(phen)2(TCNQ)3 was
developed. The Cu(phen)3(TCNQ)2/CNT modified glassy carbon electrode showed an excellent electrocatalytic activity toward urate oxidation. The
sensor was successfully applied to urate determination in urine samples
2029 Use of an Automatic System in the Preparation of Gas Mixtures for Multivariate Calibration: A Case Study Involving NIR Analysis of Natural GasMayara F. Barbosa, Hebertty V. Dantas, Pablo N. T. Moreira, Roberto K. H. Galvão and Mário C. U. Araújo
Graphical AbstractA multivariate model for near-infrared (NIR) spectrometric analysis of natural gas is developed by using calibration mixtures prepared by an
automatic system
2014 Methyl Salicylate: an Alternative Extraction Solvent for Dispersive-Liquid-Liquid Microextraction of Benzimidazole Fungicides in Water Samples Followed by High-Performance Liquid Chromatographic AnalysisYanawath Santaladchaiyakit, Nattaphorn Phiroonsoontorn, Chuda Sillapatiwat, Kanyavee Kotchalee and Supalax Srijaranai
Graphical AbstractMethyl salicylate has firstly been demonstrated as an alternative extraction solvent for dispersive liquid-liquid microextraction of
benzimidazole fungicides in environmental water samples. The method is simple, rapid, low cost, and reliable for trace analysis of fungicides
SI online
2046 Dispersive Liquid-Liquid Microextraction Based on Solidification of Floating Organic Drop with Central Composite Design for the Determination of Nitrophenols Using High-Performance Liquid ChromatographyBeshare Hashemi, Mojtaba Shamsipur and Ali Barati
Graphical AbstractIn this work, a dispersive liquid-liquid microextraction method based on solidification of organic drop (DLLME-SFO) followed by high performance
liquid chromatography (HPLC) was applied to determine the amount of two nitrophenols in water samples. The effect of the main experimental variables on the extraction procedure was investigated and optimized by
the experimental design method
SI online
J. Braz. Chem. Soc.vi
2063 Sequential Injection Analysis with Square Wave Voltammetry (SI-SWV) Detection for Investigation of Adsorption of Picloram on a Clay SoilLuciana B. O. dos Santos and Jorge C. Masini
Graphical AbstractSequential injection manifold for determination of the free picloram
concentrations employing square wave voltammetry
2077 Development of a Multiresidue Method for Pesticide Analysis in Drinking Water by Solid Phase Extraction and Determination by Gas and Liquid Chromatography with Triple Quadrupole Tandem Mass SpectrometryFilipe F. Donato, Manoel L. Martins, Juliana S. Munaretto, Osmar D. Prestes, Martha B. Adaime and Renato Zanella
Graphical AbstractConsidering the importance of pesticide residues monitoring programs
in drinking water to attend the legislations, reliable methods with high detectability and selectivity are required. A method for the determination
of 70 pesticide residues in drinking water using solid phase extraction (SPE) with polymeric sorbent and gas chromatography coupled to tandem mass spectrometry (GC-MS/MS) and liquid chromatography coupled to tandem
mass spectrometry (LC-MS/MS) was developed and validated
2069 Biomimetic Sensor for Detection of Hydrochlorothiazide Employing Amperometric Detection and Chemometrics for Application in Doping in SportsMayara R. S. Ruy, Eduardo C. Figueira and Maria D. P. T. Sotomayor
Graphical AbstractThe sensor, based on hemin, is a viable alternative for the determination of hydrochlorothiazide in a simple, rapid, selective and sensitive way for
the application in doping and quality control
2054 Chemical Characterization and Optimization of the Extraction Process of Bioactive Compounds from Propolis Produced by Selected Bees Apis melliferaTatiane Luiza Cadorin Oldoni, Sheila C. Oliveira, Suelen Andolfatto, Mariéli Karling, Matheus A. Calegari, Ricardo Y. Sado, Fabiana M. C. Maia, Severino M. Alencar and Vanderlei A. Lima
Graphical AbstractThe extraction process of bioactive compounds from the propolis
produced by selected bees was optimized using a 2³ factorial design and the extract produced in the optimal condition was evaluated determining
its chemical composition and antioxidant activity
2088 Bioactive Cyanopeptides Produced by Sphaerocavum brasiliense Strains (Cyanobacteria)Maria Estela Silva-Stenico, Janaina Rigonato, Adriana Sturion Lorenzi, Maria Teresa Paiva Azevedo, Célia Leite Sant’Anna and Marli Fátima Fiore
Graphical AbstractPhotomicrograph of Sphaerocavum brasiliense colony (scale bar = 20 μm,
400×). Source: Watson A. Gama
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viiVol. 26, No. 10, 2015
2105 Efficient Eco-Friendly Solvent-Free Click Synthesis and Antimicrobial Evaluation of New Fluorinated 1,2,3-Triazoles and their Conversion into Schiff BasesMohamed R. Aouad
Graphical AbstractThis study reports a rapid green click synthesis of novel fluorinated 1,2,3-triazole diesters under solvent-free conditions. The resulting diesters were converted to their corresponding bishydrazones and
evaluated for their antimicrobial activity
2125 Transport Properties of Binary Solutions Containing the Ionic Liquid BMI.BF4 and Ethylene GlycolFernanda T. Silva, Demétrius W. Lima, Márcia R. Becker, Roberto F. Souza and Emilse M. A. Martini
Graphical AbstractIonic conductivity values of binary solutions containing ionic liquid
1-butyl-3-methylimidazolium tetrafluoroborate (BMI.BF4) and ethylene glycol at different concentrations and over a wide temperature range
2116 Total Mercury Determination in Petroleum Green Coke and Oily Sludge Samples by Cold Vapor Atomic Fluorescence Spectrometry Adriana S. Camera, Tatiane A. Maranhão, Fernando J. S. Oliveira, Jessee S. A. Silva and Vera L. A. Frescura
Graphical AbstractPetroleum refining wastes are potential source of Hg and consequently
harmful to environment and humans but it could be an alternative source of energy
2097 Response Surface Methodology Applied in the Study of Emulsion Formulations in the Presence of Leaves of Rosemary (Rosmarinus officinalis L.) as a Source of Natural AntioxidantsThiago Claus, Sylvio V. Palombini, Fabiana Carbonera, Ingrid L. Figueiredo, Makoto Matsushita and Jesuí V. Visentainer
Graphical AbstractRosemary (Rosmarinus officinalis L.) is an excellent source of natural
antioxidants for the emulsion systems. The higher gains in lipid protection were obtained by oil-in-water systems, principally
2130 Use of Biodiesel Press Cake Waste to Prepare Fe/Carbon Reactive Composites for Environmental Applications: Removal of Hazardous CrVI ContaminantsElizângela A. Santos, Paulo F. R. Ortega, Rodrigo L. Lavall, Sérgio C. Reis, José D. Ardisson, Rochel M. Lago, Clésia C. Nascentes and Letícia M. Costa
Graphical AbstractBiodiesel press cake combined with Fe produces reactive composites
supported on carbon to be used in CrVI removal
SI online
SI online
J. Braz. Chem. Soc.viii
2144 Chemical Speciation of Iron in Different Varieties of Beans (Phaseolus vulgaris L.): Cooking EffectsAline P. Oliveira and Juliana Naozuka
Graphical AbstractSimple fractionation procedures allowed the chemical speciation of
Fe and the study of cooking effects on the distribution of Fe-species in seven different varieties of Phaseolus beans. Soluble and inorganic iron
concentration suffered alterations due to cooking
2159 Square-Wave Voltammetric Determination of Paracetamol and Codeine in Pharmaceutical and Human Body Fluid Samples Using a Cathodically Pretreated Boron-Doped Diamond ElectrodeAnderson M. Santos, Fernando C. Vicentini, Patrícia B. Deroco, Romeu C. Rocha-Filho and Orlando Fatibello-Filho
Graphical AbstractA novel electroanalytical method was developed for the simultaneous
determination of paracetamol and codeine in pharmaceutical formulations and human body fluids. The method involves the
combination of square-wave voltammetry with a cathodically pretreated boron-doped diamond electrode
2150 Application of Bar Adsorptive Microextraction-Large-Volume Injection-Gas Chromatography-Mass Spectrometric Method for the Determination of Trace Levels of Agrochemicals in Real MatricesJoão R. Bernarda, Samir M. Ahmad, Carlos Almeida, Nuno R. Neng and José Manuel F. Nogueira
Graphical AbstractApplication of bar adsorptive microextraction for the analysis of environmental water and wine matrices using floating sampling
technology
2137 Rapid Determination of Lead in Progressive Hair Dye Lotion by Spot Test/Diffuse Reflectance Spectroscopy with a Paper PlatformVitor H. M. Luiz, Lívia M. Saraiva, Ângela P. Martins, Leonardo Pezza and Helena R. Pezza
Graphical AbstractA simple and clean methodology employing a combined spot test/diffuse
reflectance spectroscopy procedure was developed and applied for analysis of lead in progressive hair dyes, using a filter paper platform
SI online