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Journal of the Brazilian Chemical Society
versão impressa ISSN 0103-5053

 

Sumário
J. Braz. Chem. Soc. vol.22 no.5 São Paulo maio 2011

 Editorial
  
 ·  Terras Raras: Brasil x China
Serra, Osvaldo Antonio

  
 Articles
  
 ·  A multicommuted flow system for dissolution studies of Captopril in pharmaceutical preparations
Sanchez, Mariana A; Rocha, Diogo L; Melchert, Wanessa R; Rocha, Fábio R. P

  
 ·  Sequential voltammetric determination of chromium, thallium, cadmium, lead, copper and antimony in saline hemodialysis concentrates using electrolyte pH gradient
Nascimento, Paulo C; Schneider, Alexandre B; Bohrer, Denise; Carvalho, Leandro M. de; Jost, Cristiane L

  
 ·  Metal fractionation in sediments of the Sergipe River, northeast, Brazil
Passos, Elisangela de Andrade; Alves, Jose do Patrocínio H; Garcia, Carlos Alexandre B; Costa, Antonio C. Spinola

  
 ·  Citalopram Hydrobromide: degradation product characterization and a validated stability-indicating LC-UV method
Sharma, Manav; Jawa, Parikshit R; Gill, Ravinder S; Bansal, Gulshan

  
 ·  Synthesis, antimicrobial and cytotoxicity studies of some novel modified Strobilurin derivatives
Sridhara, Ajjanna M; Reddy, Kallam R. Venugopala; Keshavayya, Jathi; Ambika, Dasannana Malige S; Gopinath, Vadiraj S; Bose, Prosenjit; Goud, Sanath Kumar; Peethambar, Sanenahalli K

  
 ·  Protolytic properties of dyes embedded in gelatin films
Nikitina, Nataliya A; Reshetnyak, Elena A; Svetlova, Nataliya V; Mchedlov-Petrossyan, Nikolay O

  
 ·  Ethambutol analysis by copper complexation in pharmaceutical formulations: spectrophotometry and crystal structure
Faria, Adriana F; Marcellos, Luiza F; Vasconcelos, Juliana P; Souza, Marcus V. N. de; S. Júnior, Antônio L; Carmo, Weberton R. do; Diniz, Renata; Oliveira, Marcone A. L. de

  
 ·  Electrooxidation of Phenol on a Ti/RuO2 anode: effect of some electrolysis parameters
Santos, Iranildes D. dos; Afonso, Júlio C; Dutra, Achilles J. B

  
 ·  Studying the distribution of Selenium in buffalo and cow's milk whey
Pereira Junior, João B; Fernandes, Kelly G

  
 ·  Deltamethrin and Permethrin in the liver and heart of Wistar rats submitted to oral subchronic exposure
Santos, Mônica A. T; Rodrigues, Marili V. N; Áreas, Miguel A; Reyes, Felix G. R

  
 ·  Square wave voltammetric determination of Dexamethasone on a multiwalled carbon nanotube modified pencil electrode
Rezaei, B; Zare, S. Z. Mirahmadi; Ensafi, Ali A

  
 ·  One-pot synthesis of 4H-Chromene and Dihydropyrano[3,2-c]chromene derivatives in hydroalcoholic media
Ghorbani-Vaghei, Ramin; Toghraei-Semiromi, Zahra; Karimi-Nami, Rahman

  
 ·  Arsenic and Mercury mobility in brazilian sediments from the São Francisco River Basin
Rezende, Patrícia S; Moura, Priscila A. S; Durão Jr, Walter A; Nascentes, Clésia C; Windmöller, Cláudia C; Costa, Letícia M

  
 ·  Monitoring of β-blockers ozone degradation via electrospray ionization mass spectrometry
Quispe, Cristina; Nachtigall, Fabiane M; Fonseca, Maria Francesca R; Alberici, Rosana M; Astudillo, Luis; Villaseñor, Jorge; Eberlin, Marcos N; Santos, Leonardo S

  
 ·  Antioxidant activity and composition of propolis obtained by different methods of extraction
Cottica, Solange M; Sawaya, Alexandra C. H. F; Eberlin, Marcos N; Franco, Selma L; Zeoula, Lucia M; Visentainer, Jesuí V

  
 ·  Activity of the Lupane isolated from Combretum leprosum against Leishmania amazonensis promastigotes
Teles, Carolina B. G; Moreira, Leandro S; Silva, Alexandre de A. E; Facundo, Valdir A; Zuliani, Juliana P; Stábeli, Rodrigo G; Silva-Jardim, Izaltina

  
 ·  Chemical constituents from branches of Maytenus gonoclada (Celastraceae) and evaluation of antimicrobial activity
Silva, Fernando C; Duarte, Lucienir P; Silva, Grácia D. F; V. Filho, Sidney A; Lula, Ivana S; Takahashi, Jacqueline A; Sallum, William S. T

  
 ·  Theoretical determination of the properties of Methanesulfinic and Methanesulfonic acids
Carvalho, Nathália F; Silva, Simão P; Resende, Stella M

  
 ·  Chemotaxonomic significance of volatile constituents in Hypenia (Mart. ex Benth.) R. Harley (Lamiaceae)
Silva, Julierme G; Faria, Maria T; Oliveira, Érica R; Rezende, Maria H; Ribeiro, Dalva G; Ferreira, Heleno D; Santos, Suzana C; Seraphin, José C; Ferri, Pedro H

  
 ·  Modified silica nanoparticles with an Aminonaphthoquinone
Silveira, Gleiciani Q; Ronconi, Célia M; Vargas, Maria D; San Gil, Rosane A. S; Magalhães, Alvicler

  
 ·  A theoretical study of the inversion and rotation barriers in Methyl-substituted Amines
Nascimento, Júnior; Pelegrini, Marina; Ferrão, Luiz F. A; Roberto-Neto, Orlando; Machado, Francisco B. C

  
 ·  Slow relaxation of the magnetization in Oximato-bridged heterobimetallic Copper(II)-Manganese(III) chains
Ruiz, Rafael; Castro, Isabel; Pardo, Emilio; Ferrando-Soria, Jesús; Cano, Joan; Lloret, Francesc; Julve, Miguel

  
 Short Reports
  
 ·  Validated method for the determination of Gemifloxacin in bulk, pharmaceutical formulations and human serum by RP-HPLC: in vitro applications
Sultana, Najma; Arayne, M. Saeed; Shamim, Sana; Akhtar, Mahwish; Gul, Somia

  
 ·  Novel anthraquinone derivatives produced by Pestalotiopsis guepinii, an endophytic of the medicinal plant Virola michelii (Myristicaceae)
Oliveira, Marilene N; Santos, Lourivaldo S; Guilhon, Giselle M. S. P; Santos, Alberdan S; Ferreira, Isabel C. S; Lopes-Junior, Manoel L; Arruda, Mara Silvia P; Marinho, Andrey M. R; Silva, Milton N. da; Rodrigues-Filho, Edson; Oliveira, Maria C. F

  
 ·  C-24 stereochemistry of marine Sterols: (22E)-24-Ethyl-24-methylcholesta-5,22-dien-3b-oβl and 24-Ethyl-24-methylcholest-5-en-3β-ol
Echigo, Shizue; Castellanos, Leonardo; Duque, Carmenza; Uekusa, Hidehiro; Hara, Noriyuki; Fujimoto, Yoshinori