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

 

Sumário
J. Braz. Chem. Soc. v.15 n.5 São Paulo set./out. 2004

Editorial
Pinto, Angelo C.; Andrade, Jailson B. de

  
 Articles
  
 ·  Chemical composition of the dufour gland secretion in queens of Melipona bicolor (Hymenoptera, Meliponini)
Abdalla, Fábio C.; Jones, Graeme R.; Morgan, David; Cruz-Landim, Carminda da

  
 ·  Investigation of the influence of the anode composition of DSA-type electrodes on the electrocatalytic oxidation of phenol in neutral medium
Alves, Paula D. P.; Spagnol, Magali; Tremiliosi-Filho, Germano; Andrade, Adalgisa R. de

  
 ·  Rapid quantitative turbidimetric spot test analysis of potassium in blood serum
Tubino, Matthieu; Souza, Rafael L. de; Hoehr, Nelci F.

  
 ·  Properties of [Pd2X2(dppm)2] (X = Cl, SnCl3, dppm = Bis(diphenylphosphino)methane) complexes on porous vycor glass
Gimenez, Iara de Fátima; Alves, Oswaldo Luiz

  
 ·  Alcohol- and gasohol-fuels: a comparative chamber study of photochemical ozone formation
Pereira, Pedro Afonso de P.; Santos, Leilane Maria B.; Sousa, Eliane Teixeira; Andrade, Jailson B. de

  
 ·  Preparation of (5R)-4,8-dimethylbicyclo[3.3.0]oct-1(8),3-dien-2-one from (-)-limonene oxide: a novel intermediate to the synthesis of 4-5-5 fused tricarbocyclic core present in terpenic natural products
Pisoni, Diego S.; Silva, Daniel B.; Schenato, Rossana A.; Ceschi, Marco A.

  
 ·  Factorial experimental design optimization of solid phase microextraction (SPME) conditions for analysis of butylated hydroxytoluene (BHT) in bottled water
Tombesi, Norma B.; Freije, Rubén H.; Augusto, Fabio

  
 ·  Phenolic compounds in acerola fruit (Malpighia punicifolia, L.)
Vendramini, Ana Lúcia A.; Trugo, Luiz C.

  
 ·  Kinetics and isotherms of dazomet adsorption on natural adsorbents
Sismanoglu, T.; Ercag, A.; Pura, S.; Ercag, E.

  
 ·  Determination of vanadium in urine by electrothermal atomic absorption spectrometry using hot injection and preconcentration into the graphite tube
Fernandes, Kelly G.; Nogueira, Ana Rita A.; Gomes Neto, José A.; Nóbrega, Joaquim A.

  
 ·  Free 2-propen-1-amine derivative and inclusion complexes with b-cyclodextrin: scanning electron microscopy, dissolution, cytotoxicity and antimycobacterial activity
Souza, Ana O. de; Santos-Jr, Rubens R.; Sato, Daisy N.; Azevedo, Marcelo M. M. de; Ferreira, Denise A.; Melo, Patrícia S.; Haun, Marcela; Silva, Célio L.; Durán, Nelson

  
 ·  Analysis of pesticide residues in rice using matrix solid-phase dispersion (MSPD)
Dórea, Haroldo S.; Lima Sobrinho, Ledjane

  
 ·  Syntheses, characterization and X-ray structure of potassium hydrotris(2-mercaptothiazolyl)borate, KMt, and potassium hydrotris(methimazole)borate, KTm
Soares, Luis F.; Silva, Rosalice M.; Doriguetto, Antonio C.; Ellena, Javier; Mascarenhas, Yvonne P.; Castellano, Eduardo E.

  
 ·  Determination of gibberellic acid by sequential injection analysis using a potentiometric detector based on Mn(III)-porphyrin with improved characteristics
Santos, Emília M. G.; Couto, Cristina M. C. M.; Araújo, Alberto N.; Montenegro, M. Conceição B. S. M.; Reis, Boaventura F.

  
 ·  Synthesis, spectroscopy and photosensitizing properties of hydroxynitrophenylporphyrins
Maestrin, Ana Paula J.; Tedesco, Antonio Cláudio; Neri, Cláudio R.; Gandini, Maria Elisa F.; Serra, Osvaldo A.; Iamamoto, Yassuko

  
 ·  Determination of boron in natural water and products derived from grape using an automated flow injection analysis system with piezoelectric detection
Jesus, Dosil P. de; Saito, Renata M.; Lago, Claudimir L. do

  
 ·  Phase-boundary catalysts for acid-catalyzed reactions: the role of bimodal amphiphilic structure and location of active sites
Nur, Hadi; Ikeda, Shigeru; Ohtani, Bunsho

  
 ·  Assessment of lipid compounds and phosphorus in mangrove sediments of Santa Catarina Island, SC, Brazil
Mater, Luciana; Alexandre, Marcelo R.; Hansel, Fabrício A.; Madureira, Luiz A. S.

  
 ·  Evaluation of a nafion coated glassy carbon electrode for determination of paraquat by differential pulse voltammetry
Oliveira, Ulisses M. F. de; Lichtig, Jaim; Masini, Jorge C.

  
 ·  Isoprenoid compounds from Euphorbia portlandica. X-ray structure of lupeportlandol, a new lupane triterpene
Madureira, Ana M.; Duarte, Maria Teresa; Piedade, Maria Fátima M.; Ascenso, José R.; Ferreira, Maria-José U.

  
 ·  Electrochemistry of vitamin E hydro-alcoholic solutions
Giacomelli, Cristiano; Giacomelli, Fernando Carlos; Alves, Luciano Ortigara; Timbola, Ana Karina; Spinelli, Almir

  
 ·  Chemical composition and antifungal activity of the essential oil of Hyptis ovalifolia Benth. (Lamiaceae)
Oliveira, Cecília M. A. de; Silva, Maria do Rosário R.; Kato, Lucília; Silva, Cleuza C. da; Ferreira, Heleno D.; Souza, Lúcia K. H.

  
 ·  Hydrogenation of 2-ethyl-hexen-2-al on Ni/Al2O3 catalysts
Mattos, Arthur R.J.M.; Probst, Sônia H.; Afonso, Júlio C.; Schmal, Martin

  
 ·  Terpenoid constituents from leaves of Guarea kunthiana
Garcez, Fernanda R.; Garcez, Walmir S.; Silva, Ana Francisca G. da; Bazzo, Rita de Cássia; Resende, Ubirazilda M.

  
 Short Reports
  
 ·  Silica sulfuric acid as an efficient and reusable reagent for crossed-aldol condensation of ketones with aromatic aldehydes under solvent-free conditions
Salehi, Peyman; Dabiri, Minoo; Zolfigol, Mohammad Ali; Fard, Mohammad Ali Bodaghi

  
 ·  The chemical composition of the mandibular gland secretion of Melipona bicolor Lepeletier, 1836 (Hymenoptera, Apidae, Meliponini): a comparative study among castes and sexes
Gracioli-Vitti, Luciana F.; Abdalla, Fábio C.; Moraes, Regina L. M. Silva de; Jones, Graeme R.

  
 ·  An efficient monitoring technique for solid-phase reactions by KBr pellets/FT-IR using methyl p-aminobenzoate synthesis assisted by microwave radiation on merrifield resin
Antonow, Dyeison; Graebin, Cedric Stephan; Eifler-Lima, Vera Lucia

  
 ·  Quantitative determination of the enantiomeric composition of panthotenic acid solutions: a mass spectrometry experiment
Augusti, Daniella V.; Lago, Rochel M.; Augusti, Rodinei