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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.

Artigos no Prelo


Artigos

SÍNTESE E AVALIAÇÃO DA ATIVIDADE CITOTÓXICA DE DERIVADOS DO EUGENOL CONTENDO NÚCLEOS 1,2,3-TRIAZÓLICOS

Poliana Aparecida Rodrigues Gazolla; Róbson Ricardo Teixeira; Adalberto Manoel da Silva; Boniek Gontijo Vaz; Géssica Adriana Vasconcelos; Raoni Pais Siqueira; Victor Hugo Sousa Gonçalves; Higor Sette Pereira; Gustavo Costa Bressan

Triazolic derivatives of eugenol were prepared and had their cytotoxicity evaluated.

http://dx.doi.org/10.21577/0100-4042.20170206

Publicado online: fevereiro 22, 2018
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NEW ALKYL PHENOLS AND FATTY ACID PROFILE FROM OILS OF PULPED Spondias mombin L. SEED WASTES

Larissa C. de Rezende; Patricia de A. Santos; Valéria B. Riatto; Jorge M. David; Juceni P. David

Waste seed oils of Spondias mombin presents mostly unsaturated fatty acid, phytosteroids and two new alkenyl phenols.

http://dx.doi.org/10.21577/0100-4042.20170203

Publicado online: fevereiro 22, 2018
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COMO OBTER NANOPARTÍCULAS DE OURO USANDO SUCO DE LIMÃO?

Mariana F. Coura; Guilherme Arroyos; Lilian Cherubin Correia; Regina C. G. Frem

This work shows the use of lemon varieties as natural reducing agents for the preparation of gold nanoparticles from two different metallic precursors. UV-Vis spectra of the red colloidal solutions show bands at ~ 520 nm corresponding to particle sizes of 5-25 nm.

http://dx.doi.org/10.21577/0100-4042.20170202

Publicado online: fevereiro 22, 2018
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ÓXIDO DE ÍTRIO E ALUMÍNIO DOPADO COM Yb3+ E Er3+ INCORPORADO EM MEMBRANA DE POLIAMIDA

Michel L. de Souza; Susane B. Moscardini; Emerson H. de Faria; Katia J. Ciuffi; Lucas A. Rocha; Eduardo J. Nassar; Jorge V. L. Silva; Marcelo F. Oliveira; Izaque A. Maia

The article describes the incorporation of the yttrium aluminum oxide doped with Yb3+ and Er3+ incorporated into polyamide membrane obtained by Additive Manufacture. This work presents potential applications to transform infrared radiation into visible, upconversion.

http://dx.doi.org/10.21577/0100-4042.20170201

Publicado online: fevereiro 22, 2018
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REACTIVE MOLECULAR DYNAMICS SIMULATION AND CHEMICAL KINETIC EVALUATION OF COMBUSTION OF TRIETHYLALUMINIUM (TEA)

Rene F. B. Gonçalves; Koshun Iha; José A. F. F. Rocco

Potential energy variation for triethylaluminum combustion under different temperatures in NVE-MD simulations.

http://dx.doi.org/10.21577/0100-4042.20170200

Publicado online: fevereiro 22, 2018
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THERMOGRAVIMETRIC APPROACH FOR ASSESSING THE OXIDATION LEVEL OF A BIODIESEL SAMPLE

Luis Díaz-Ballote; Karen Gómez-Hernández; Elsy T. Vega-Lizama; Miguel A. Ruiz-Gómez; Luis Maldonado; Emanuel Hernández

Samples of biodiesel were first exposed to an accelerated oxidation process and then thermally decomposed. The final mass measured on the weight loss curve was used for assessing its oxidative level.

http://dx.doi.org/10.21577/0100-4042.20170199

Publicado online: fevereiro 8, 2018
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CORRELAÇÕES GEOQUÍMICAS ENTRE AMOSTRAS DE PETRÓLEO DA BACIA POTIGUAR E DEFINIÇÃO DE SUAS POSSÍVEIS ROCHAS GERADORAS

Jeferson Cavalcante Alves; Rennan Geovanny Oliveira Araujo; Eliane Soares de Souza; Sarah Adriana Rocha Soares; José Roberto Cerqueira; Karina Santos Garcia; Antonio Fernando de Souza Queiroz; Maria Goreti Rodrigues Vale; Aline Rocha Borges

The oil is made up of organic and inorganic components, in which identified and quantified through chromatographic analytical techniques and atomic spectrometry, which assists in the evaluation of the type of its generating rock and its depositional paleoenvironment.

http://dx.doi.org/10.21577/0100-4042.20170195

Publicado online: fevereiro 1, 2018
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AVALIAÇÃO DO DESEMPENHO DE UMA FASE SENSORA DE POLIURETANO POR MEIO DA ENERGIA DE GIBBS DE SOLVATAÇÃO E ESPECTROSCOPIA DE INFRAVERMELHO PARA DETERMINAÇÃO DE TOLUENO EM ÁGUA

Juliana D. C. Souza; Rogerio V. de Azevedo Júnior; Glória M. Vinhas; Nathalia B. D. Lima; Andréa M. S. S. Brito

We advance a computational strategy for the choice of sensing phases based on polymer matrices, for organic contaminants in water. This strategy was employed to evaluate a novel sensing phase of polyurethane, which was effective in determining toluene contaminant in water samples.

http://dx.doi.org/10.21577/0100-4042.20170194

Publicado online: fevereiro 1, 2018
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EVALUATING THE ACCUMULATION TREND OF L-DOPA IN DARK-GERMINATED SEEDS AND SUSPENSION CULTURES OF Phaseolus vulgaris L. BY AN EFFICIENT UV-SPECTROPHOTOMETRIC METHOD

Samira Rahmani-Nezhad; Shima Dianat; Mina Saeedi; Maliheh Barazandeh Tehrani; Adel Ghadiri; Abbas Hadjiakhoondi

A user-friendly and economical UV-spectrophotometric method was described to determine L-DOPA content in extracts from 33 biotypes of Phaseolus vulgaris L. The method is based on the nitrosation of L-DOPA to form a yellow solution and then formation of a red solution by adding base which is measurable at 470 nm.

http://dx.doi.org/10.21577/0100-4042.20170193

Publicado online: fevereiro 1, 2018
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INSECTICIDAL ACTIVITY OF DIENAMIDES ON CABBAGE CATERPILLAR AND BENEFICIAL INSECTS

Mayara Cristina Lopes; Elson Santiago Alvarenga; Alex Ramos Aguiar; Izailda Barbosa dos Santos; Gerson Adriano Silva; Lucas de Paula Arcanjo; Marcelo Coutinho Picanço

The dienamides synthesized were evaluated against the insect pest Ascia monuste, the natural enemy, and the pollinator. The dienamides were toxic to the pest and were selective in favor of the natural enemy and pollinator.

http://dx.doi.org/10.21577/0100-4042.20170192

Publicado online: fevereiro 1, 2018
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UTILITY OF FUNCTIONALIZED AGAROSE NANOPARTICLES IN HYDROLYZING LACTOSE IN BATCH REACTORS FOR DAIRY INDUSTRIES

Shakeel Ahmed Ansari; Syed Ismail Ahmad; Mohammad Alam Jafri; Muhammad Imran Naseer; Rukhsana Satar

Immobilization of β-galactosidase on galactose modified ANPs for hydrolyzing lactose.

http://dx.doi.org/10.21577/0100-4042.20170190

Publicado online: fevereiro 1, 2018
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SYNTHESIS, LARVICIDAL AND ACETYLCHOLINESTERASE INHIBITORY ACTIVITIES OF CARVACROL/THYMOL AND DERIVATIVES

Bruna M. de Mesquita; Patricia G. G. do Nascimento; Luciana G. S. Souza; Iolanda F. de Farias; Romézio A. C. da Silva; Telma L. G. de Lemos; Francisco J. Q. Monte; Irvila R. Oliveira; Maria T. S. Trevisan; Horlando C. da Silva; Gilvandete M. P. Santiago

Nine derivatives were prepared from carvacrol/thymol. The structures were confirmed by MS, IR and NMR, and acetylcholinesterase and larvicidal tests were performed.

http://dx.doi.org/10.21577/0100-4042.20170189

Publicado online: fevereiro 1, 2018
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HIDROGÉIS NANOCOMPÓSITOS DE POLISSACARÍDEO COM ZEÓLITA: AVALIAÇÃO DO PROCESSO DE ADSORÇÃO DO PESTICIDA PARAQUAT

Diego H. O. Barbosa; Marcia R. de Moura; Fauze A. Aouada

Water contamination cycle caused by paraquat pesticide, which can be prevented by using nanocomposite hydrogels based on polysaccharide and zeolite as proven by the UV-Vis spectrum of paraquat solution indicating their sorption into absorbent materials.

http://dx.doi.org/10.21577/0100-4042.20170188

Publicado online: fevereiro 1, 2018
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POLÍMERO BIODEGRADÁVEL ANTIMICROBIANO ATRAVÉS DA ADITIVAÇÃO COM COMPOSTOS À BASE DE ZINCO

Ana P. Capelezzo; Laura C. Mohr; Francieli Dalcanton; Carolina R. D. M. Barreta; Maria A. P. M. Martins; Márcio A. Fiori; Josiane M. M. de Mello

ZnO NPs and Zn MCs were incorporate to Ecoflex® by the extrusion process, obtaining the biodegradable antimicrobial polymer. This property was proved by the death curve test, with better results to the Zn MCs + Ecoflex®.

http://dx.doi.org/10.21577/0100-4042.20170187

Publicado online: fevereiro 1, 2018
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URSOLIC ACID AND CIS-TILIROSIDE PRODUCED BY Merremia tomentosa AFFECT OVIPOSITION OF Leucoptera coffeella ON COFFEE PLANTS

Helvécio M. Santos Júnior; Karina C. Lopes; Dejane S. Alves; Geraldo A. Carvalho; Denilson F. Oliveira

Oviposition of Leucoptera coffeella was prevented by the extract of Merremia tomentosa and two of its components, ursolic acid and cis-tiliroside. In silico studies suggest that these substances act against the insect by inhibiting the enzymes glycogen phosphorylase and xanthine dehydrogenase.

http://dx.doi.org/10.21577/0100-4042.20170185

Publicado online: janeiro 18, 2018
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PREPARATIVE SEPARATION OF ISOQUINOLINE ALKALOIDS FROM PHELLODENDRI CORTEX BY PH‑ZONE-REFINING COUNTER-CURRENT CHROMATOGRAPHY

Daijie Wang; Shanming Tian; Li Cui; Huijiao Yan; Xiangyun Song; Yuguo Liu; Fei Xu; Junjian Ma

Isoquinoline alkaloids with high polarity from Phellodendri Cortex, were successfully separated by PZRCCC with a two-phase solvent system chloroform/methanol/water (4:2:2, v/v).

http://dx.doi.org/10.21577/0100-4042.20170184

Publicado online: janeiro 18, 2018
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PHENOLIC DERIVATIVES AND ANTIOXIDANT ACTIVITY OF POLAR EXTRACTS FROM Bauhinia pulchella

Adonias Almeida Carvalho; Lucivania Rodrigues dos Santos; Ruth Raquel Soares de Farias; Mariana Helena Chaves; Chistiane Mendes Feitosa; Gerardo Magela Vieira Júnior; Mônica Regina Silva de Araújo; Paulo Michel Pinheiro Ferreira; Claudia do Ó Pessoa

EEF and EAF showed similar profiles by HPLC, with the presence of three flavonoids: myricitrin (1), quercitrin (2) and afzelin (3). In assay of TBARS and ABTS radical cation, EAF showed antioxidant potential higher than the EEF.

http://dx.doi.org/10.21577/0100-4042.20170183

Publicado online: janeiro 18, 2018
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CHROMATOGRAPHIC INVESTIGATION OF RUTHENIUM NITROSYL COMPLEX: NO INTERCONVERSION AND REACTIONS WITH BIOLOGICAL REDUCTANTS

Francisco O. N. da Silva; Dayana P. S. Penha; Ana E. V. de Alencar; Daniel de L. Pontes; Ana C. F. de B. Pontes; Eduardo H. S. Sousa; Luiz G. F. Lopes

The results showed that HPLC can be used as a powerful technique to monitor and characterize more complex reactions involving metal complexes such as nitrite/nitrosyl interconversion in ruthenium bipyridine complexes.

http://dx.doi.org/10.21577/0100-4042.20170181

Publicado online: janeiro 18, 2018
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ENZYMATIC BIODIESEL SYNTHESIS FROM ACID OIL USING A LIPASE MIXTURE

Kelly C. N. R. Pedro; Juliana M. Parreira; Igor N. Correia; Cristiane A. Henriques; Marta A. P. Langone

The biodiesel yield doubled using lipase mixture in ethanolysis of acid oil. The blend of Lipozyme TL and Novozym was the best option considering cost and yield. Lipases can be used to produce biodiesel from oils high levels acidity oils.

http://dx.doi.org/10.21577/0100-4042.20170180

Publicado online: dezembro 21, 2017
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IN VITRO PHYTOREMEDIATION OF PERSISTENT ORGANIC POLLUTANTS BY Helianthus annuus L. PLANTS

Marcos V. de Almeida; Sandra R. Rissato; Mário S. Galhiane; João R. Fernandes; Paulo C. Lodi; Marcelo C. de Campos

The importance of the in vitro phytoremediation method study to evaluate the process of removal of pollutants.

http://dx.doi.org/10.21577/0100-4042.20170177

Publicado online: dezembro 18, 2017
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KINETIC BEHAVIOR OF SOME AZO DYES DECOLORIZATION BY VARIATION OF ZINC OXIDE AND TITANIUM DIOXIDE CONCENTRATIONS

Wallace J. C. da Silva; Natalia M. Monezi; Vanildo S. Leão Neto; Keiko Takashima

Photocatalytic behavior of ZnO (○) and TiO2 (□) in the decolorization rate constant, kobs, of methyl orange (); acid orange 7 (); direct orange34 (); and direct yellow 86 (▬) at 30 ºC.

http://dx.doi.org/10.21577/0100-4042.20170172

Publicado online: dezembro 12, 2017
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EXPERIMENTAL AND THEORETICAL ANALYSIS OF AN OXAZINOQUINOXALINE DERIVATIVE FOR CORROSION INHIBITION OF AISI 1018 STEEL

Joherbson Deivid dos S. Pereira; Jannyely M. Neri; Denise P. Emerenciano; Gutto Raffyson S. de Freitas; Maria Beatriz M. Cansanção Felipe; Miguel Ângelo F. de Souza; Fabrício G. Menezes; Maria Aparecida M. Maciel

An oxazinoquinoxaline as corrosion inhibitor for mild steel in saline medium.

http://dx.doi.org/10.21577/0100-4042.20170171

Publicado online: dezembro 12, 2017
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CHEMICAL CONSTITUENTS DERIVED FROM THE CANARIES MARINE SPONGE Myxilla sp.

Pere Ferriol Bunyola; Francisco J. Toledo Marante; Juan Francisco Leon Oyola; Ignacio Brouard Martin; Rayco Guedes Alonso; José J. Santana Rodríguez

Marine sponges synthesize several metabolites with potential biological activities. The large pharmaceutical companies have initiated programs for the application of these metabolites in medicine.

http://dx.doi.org/10.21577/0100-4042.20170170

Publicado online: dezembro 11, 2017
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EMPREGO DE QUÍMICA COMPUTACIONAL NA VERIFICAÇÃO E VALIDAÇÃO DA PRESSÃO DE DETONAÇÃO DE EXPLOSIVO PLÁSTICO-PBX

Fausto B. Mendonça; Rene F. B. Gonçalves; Girum S. Urgessa; Koshun Iha; Marcela Domingues; José A. F. F. Rocco

Molecular representation of solid HMX unit cell, with molecules distributed inside the boundaries, prior to the material ignition.

http://dx.doi.org/10.21577/0100-4042.20170169

Publicado online: dezembro 11, 2017
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FOURIER TRANSFORM INFRARED SPECTROSCOPY, THERMOGRAVIMETRIC ANALYSIS, SCANNING ELECTRON MICROSCOPY AS SUPPORTING TOOLS IN QUALITY CONTROL OF ANTIPARASITICS

Michelli dos Santos Silva; Karla Loriatto Gonring; Ricky Cássio Santos da Silva; Matheus Cecílio Fonseca; Marcella Matos Cordeiro Borges; Otalibio Castiglioni Nunes; Moacir Rossi Forim; Keyller Bastos Borges; Warley de Souza Borges

A new RP-HPLC method was developed and validated for the simultaneous determination of antiparasitics. In addition, FTIR (experimental and theoretical), TGA, and SEM were useful to identify the raw materials.

http://dx.doi.org/10.21577/0100-4042.20170168

Publicado online: dezembro 11, 2017
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INFLUENCE OF CARDANOL ENCAPSULATED ON THE PROPERTIES OF POLY(LACTIC ACID) MICROPARTICLES

Jaciene J. F. Cardoso; Eduardo Ricci-Júnior; Denise Gentili; Luciana S. Spinelli; Elizabete F. Lucas

Microparticles of PLA100 containing 0.75 wt/v% of PVA with cardanol encapsulated.

http://dx.doi.org/10.21577/0100-4042.20170165

Publicado online: dezembro 4, 2017
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Revisão

BIOGENIC SYNTHESIS OF IMPORTANT ENVIRONMENTAL MINERALS: MAGNESIUM PHOSPHATE COMPOUNDS AND PERSPECTIVES

Nelson Durán; Wagner J. Favaro

Bacteria, fungi, yeast and Trypanosome biomineralizations play a critical role in biogeochemical cycles. These processes have important technological and environmental applications. This review shows the recent progress in biogenic magnesium phosphate compound.

http://dx.doi.org/10.21577/0100-4042.20170204

Publicado online: fevereiro 22, 2018
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APLICACIONES BIOMÉDICAS DE POLIURETANOS

Yomaira L. Uscategui; Luis E. Díaz; Manuel F. Valero

Medical applications of polyurethanes.

http://dx.doi.org/10.21577/0100-4042.20170191

Publicado online: fevereiro 1, 2018
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A POLIANILINA NO CENÁRIO AMBIENTAL: UMA ABORGAGEM SOBRE FOTOCATÁLISE HETEROGÊNEA

Vanessa M. M. Vargas; Carla Dalmolin; Sérgio H. Pezzin; Marcela Mohallem Oliveira; Patricio Peralta-Zamora

Since 1991 sensitized photocatalysts has been a hot topic in many research fields, especially in heterogeneous photocatalysis. In the last five years, conducting polymers has been consolidated as a novel class of photosensitizers.

http://dx.doi.org/10.21577/0100-4042.20170175

Publicado online: dezembro 18, 2017
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FOTOELETROCATÁLISE EM SEMICONDUTORES: DOS PRINCÍPIOS BÁSICOS ATÉ SUA CONFORMAÇÃO À NANOESCALA

Alexandre L. B. Baccaro; Ivano G. R. Gutz

Comparison between monocrystal n-dopped and nanoparticle semiconductor electrodes and their respective band diagrams both under a positive biasing potential (VBias > VFB). The model considered for the space-charge layer (SCL) is the depletion layer and the Flat Band.

http://dx.doi.org/10.21577/0100-4042.20170174

Publicado online: dezembro 13, 2017
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Nota Técnica

LIXIVIAÇÃO ÁCIDA DE BATERIAS ÍON-LÍTIO

Rafael Gundim Silva; Júlio Carlos Afonso; Claudio Fernando Mahler

Leaching of spent lithium-ion batteries under mild experimental conditions using weak and strong acids. Co(II) was extracted by D2EHPA at pH ~5. Lithium salts can be directly precipitated from the raffinate.

http://dx.doi.org/10.21577/0100-4042.20170207

Publicado online: fevereiro 22, 2018
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MÉTODOS AMBIENTALMENTE AMIGÁVEIS PARA A IODAÇÃO REGIOSSELETIVA DA 3,7,3',4'-TETRAMETOXI-QUERCETINA

Ingrid T. L. Ramos; Telma M. G. da Silva; Tania M. S. da Silva; Celso A. Camara

Environmental friendly methods for regioselective iodination of the 3,7,3',4'-tetramethoxy-quercetin. Neat reation and aprotic polar solvent selective C-6, protic polar solvent selective C-8 and excess iodine reagent selective di-iodination.

http://dx.doi.org/10.21577/0100-4042.20170205

Publicado online: fevereiro 22, 2018
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GLASSPANACEA: UM SOFTWARE EFICIENTE PARA A FORMULAÇÃO DE MATERIAIS CERÂMICOS

Renato Luiz Siqueira; José Henrique Alano; Oscar Peitl; Edgar Dutra Zanotto

GlassPanacea is an efficient software tool for ceramic materials formulation, providing the users with flexibility in the selection of chemicals, as well as speed and accuracy in the calculation of their relative proportions in a batch. The software is freely available from http://www.certev.ufscar.br/research-1/glasspanacea-glass-and-ceramic-formulation-software.

http://dx.doi.org/10.21577/0100-4042.20170196

Publicado online: fevereiro 1, 2018
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USO DE PALHA DE AÇO COMERCIAL PARA O TRATAMENTO DE EFLUENTES CONTENDO CROMO HEXAVALENTE PROVENIENTES DE PROCESSOS DE ELETROCOLORAÇÃO DE AÇOS INOXIDÁVEIS

Kallyni Irikura; Marcelo Braga Bueno Guerra; Nerilso Bocchi; Romeu Cardozo Rocha-Filho; Elaine Kikuti; Sonia Regina Biaggio

Treatment of a Cr(VI) residual solution with a given amount of commercial steel wool pads followed by chemical precipitation with NaOH up to pH 10-11 and separation by filtration under reduced pressure. The produced solid residue is predominantly Cr(OH)3 and Fe(OH)3.

http://dx.doi.org/10.21577/0100-4042.20170150

Publicado online: novembro 8, 2017
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Educação

EXPLAINING THE GEOMETRY OF SIMPLE MOLECULES USING MOLECULAR ORBITAL ENERGY-LEVEL DIAGRAMS BUILT BY USING SYMMETRY PRINCIPLES

Sérgio P. Machado; Roberto B. Faria

Qualitative energy-level molecular diagrams for different geometry allow to explain the preferred geometry of simple molecules on basis of the number of nonbonding electrons.

http://dx.doi.org/10.21577/0100-4042.20170198

Publicado online: fevereiro 8, 2018
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TOPOLOGIA UNIFICADA DOS ORBITAIS MOLECULARES DE FRONTEIRA PARA EXPLICAR REAÇÕES PERICÍCLICAS

Silvio Cunha

Pericyclic reactions can be classified according to the connectivity of reactants systems as connected atom reactions (CAR) and as not connected atom reactions (NOCAR). HOMO's topology is adequate to explain all CAR, while the HOMO-LUMO's topology explain all NOCAR.

http://dx.doi.org/10.21577/0100-4042.20170197

Publicado online: fevereiro 8, 2018
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UM ESTUDO TERMODINÂMICO DA CORROSÃO DOS AÇOS CARBONO PELO SULFETO DE HIDROGÊNIO - EXPLORANDO CONCEITOS DE EQUILÍBRIO QUÍMICO

Mariana Cristina de Oliveira; Alexandre Pereira de Lima; Rodrigo Monzon Figueredo; Heloisa Andréa Acciari; Eduardo Norberto Codaro

Schematic representation of possible reaction pathways in the corrosion of carbon steel by hydrogen sulfide.

http://dx.doi.org/10.21577/0100-4042.20170186

Publicado online: janeiro 18, 2018
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A METODOLOGIA DE RESOLUÇÃO DE PROBLEMAS: UMA EXPERIÊNCIA PARA O ESTUDO DAS LIGAÇÕES QUÍMICAS

Franciane S. C. de Lima; Leliz T. Arenas; Camila G. Passos

This figure represents the interrelationship between different aspects that can be analyzed on the teacher formation from this experience.

http://dx.doi.org/10.21577/0100-4042.20170179

Publicado online: dezembro 20, 2017
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POR QUE ESCOLHI FAZER UM CURSO DE LICENCIATURA? PERFIL E MOTIVAÇÃO DOS INGRESSANTES DA UNESP

Amadeu Moura Bego; Tarso Bortolucci Ferrari

The findings show that the majority of undergraduate students in chemistry at the São Paulo State University take the course for reasons that are essentially motivated by intrinsic factors.

http://dx.doi.org/10.21577/0100-4042.20170159

Publicado online: novembro 28, 2017
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DETERMINAÇÃO DE SÓDIO EM CACHAÇA POR ESPECTROMETRIA DE EMISSÃO ATÔMICA: EFEITO DAS PROPRIEDADES FÍSICO-QUIMICAS DA SOLUÇÃO

Junia Graziele Pereira; Luiz Antonio Ramos; Éder Tadeu Gomes Cavalheiro; Joaquim de Araújo Nóbrega

Analytical calibration curves for sodium ions in flame atomic emission spectrometry: effect of solvent composition.

http://dx.doi.org/10.21577/0100-4042.20170158

Publicado online: novembro 28, 2017
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EXPERIMENTO DIDÁTICO DE QUIMIOMETRIA PARA O MAPEAMENTO DE PELLETS FARMACÊUTICOS UTILIZANDO ESPECTROSCOPIA DE IMAGEM NA REGIÃO DO INFRAVERMELHO PRÓXIMO E RESOLUÇÃO MULTIVARIADA DE CURVAS COM MÍNIMOS QUADRADOS ALTERNANTES: UM TUTORIAL, PARTE IV

José Augusto Da-Col; Willian Francisco Cordeiro Dantas; Ronei Jesus Poppi

Didactic experiment based on the combination of Near Infrared Spectroscopy and Multivariate Curve Resolution to create a chemical imaging of pharmaceutical pellets to obtained the special distribution and spectral profile of each component in the system.

http://dx.doi.org/10.21577/0100-4042.20170149

Publicado online: novembro 8, 2017
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EXTRAÇÃO DO R-(+)-LIMONENO A PARTIR DAS CASCAS DE LARANJA: AVALIAÇÃO E OTIMIZAÇÃO DA VERDURA DOS PROCESSOS DE EXTRAÇÃO TRADICIONAIS

Tânia C. M. Pires; Maria Gabriela T. C. Ribeiro; Adélio A. S. C. Machado

For extraction of limonene, the steam distillation presents better overall greenness (green star metric) and higher throughput, but some other specific metrics indicate that extraction by solvents is greener.

http://dx.doi.org/10.21577/0100-4042.20170139

Publicado online: outubro 27, 2017
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Assuntos Gerais

PERSPECTIVAS DA QUÍMICA MEDICINAL PARA O SÉCULO XXI: DESAFIOS E OPORTUNIDADES

Carolina Horta Andrade; Arthur E. Kümmerle; Rafael V. C. Guido

In the 21st century, medicinal chemists will face many challenges to improve the quality of life of populations. The challenges consist of emerging infectious and non-communicable diseases. To combat them, innovative technologies shall be developed.

http://dx.doi.org/10.21577/0100-4042.20170182

Publicado online: janeiro 18, 2018
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