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Journal of the Brazilian Chemical Society
versión impresa ISSN 0103-5053

 

Tabla de contenido
J. Braz. Chem. Soc. v.16 n.5 São Paulo sep./oct. 2005

 Editorial
  
 
  
 Communications
  
 ·  High surface area functionalized carbon briquettes: a novel adsorbent for contaminants from water
Costa, Luiz C.M.; Araujo, Maria Helena; Sapag, Karim; Sardella, Maria F.; Silva, Hugo; Deiana, Ana C.; Lago, Rochel M.

  
 ·  Improved stability of PtOx sol-gel-modified diamond electrodes covered with a Nafion® film
Salazar-Banda, G.R.; Suffredini, H.B.; Avaca, L.A.

  
 Articles
  
 ·  A solid-phase microextraction method for the chromatographic determination of organophosphorus pesticides in fish, water, potatoes, guava and coffee
Capobiango, Helena L. V.; Cardeal, Zenilda L.

  
 ·  Effects of kraft pulping on the interfacial properties of Eucalyptus pulp fibres
Fardim, Pedro; Durán, Nelson

  
 ·  Electrochemical reduction and voltammetric determination of diloxanide furoate in non-aqueous medium
Santos, André L.; Takeuchi, Regina M.; Stradiotto, Nelson R.

  
 ·  Flow system for pre-concentration and spectrophotometric determination of reactive mercury
Yonehara, Fernando S.; Pasquini, Celio; Rohwedder, Jarbas J. R.

  
 ·  Sorption of atrazine, propazine, deethylatrazine, deisopropylatrazine and hydroxyatrazine onto organovermiculite
Abate, Gilberto; Masini, Jorge Cesar

  
 ·  Estimation of rosuvastatin in human plasma by HLPC tandem mass spectroscopic method and its application to bioequivalence study
Singh, Sonu Sundd; Sharma, Kuldeep; Patel, Harshvardhan; Jain, Manish; Shah, Hiten; Gupta, Sapna; Thakkar, Purav; Patel, Nimesh; Singh, Shri Prakash; Lohray, B. B.

  
 ·  Determination of accessible chloromethyl groups in chloromethylated styrene-divinylbenzene copolymers
Teixeira, Viviane G.; Coutinho, Fernanda M. B.; Petrocínio, Fernanda R. M.; Gomes, Ailton S.

  
 ·  Flame atomic absorption determination of cobalt in water after extraction of its morpholinedithiocarbamate complex
Cadore, Solange; Goi, Rosemary Dias; Baccan, Nivaldo

  
 ·  Synthesis and spectroscopic characterization of tin(II) and tin(IV) complexes containing 2,3,5,6-tetrakis(a-pyridyl)pyrazine as a bridging ligand
Bitzer, Rodrigo S.; Teles, Wagner M.; Abras, Anuar; Ardisson, José Domingos; Filgueiras, Carlos A. L.

  
 ·  Adsorption kinetics and dilatational rheological studies for the soluble and anchored forms of alkaline phosphatase at the air/water interface
Caseli, Luciano; Masui, Douglas C.; Furriel, Rosa Prazeres M.; Leone, Francisco Assis; Zaniquelli, Maria Elisabete D.

  
 ·  A facile spectrophotometric method for the determination of periodate using azure B
Narayana, B.; Cherian, Tom

  
 ·  Sorption and desorption of Cd(II) at the clay particle-water interface and its relevance to the distribution of metal ions in natural systems
Westrup, José L.; Fritzen, Maurícia B.; Souza, Aloísio J.; Bedendo, Gizelle C.; Nome, Faruk; Fiedler, Haidi D.

  
 ·  Production of chloride and hypochlorite for analytical purposes by sonochemical degradation of organochlorines
Korn, Mauro; Acevedo, Maria Soledad M. S. F.; Borges, Sivanildo S.; Lima, Jose L. F. C.

  
 ·  An easy access to two epimeric N-substituted (2S)-2-(2'-hydroxypropyl)pyrrolidines
Silva, Maria Joselice e; Cottier, Louis; Srivastava, Rajendra M.; Sinou, Denis

  
 ·  Optimized and validated spectrophotometric methods for the determination of lisinopril in pharmaceutical formulations using ninhydrin and ascorbic acid
Rahman, Nafisur; Singh, Manisha; Hoda, Md. Nasrul

  
 ·  A linear solvation energy relationship to predict vapor pressure from molecular structure
Quina, Frank H.; Carroll, Felix A.; Cheuy, Daniel M.

  
 ·  Secondary organic compounds in atmospheric aerosols: speciation and formation mechanisms
Alves, Célia A.; Pio, Casimiro A.

  
 ·  Intercalation and thermochemistry of amines in lamellar titanium phenylarsonate
Ruiz, V. S. O.; Airoldi, C.

  
 ·  Development of a Supercritical Fluid Extraction method for simultaneous determination of organophosphorus, organohalogen, organonitrogen and pyretroids pesticides in fruit and vegetables and its comparison with a conventional method by GC-ECD and GC-MS
Rissato, Sandra Regina; Galhiane, Mário Sérgio; Souza, Antonio G. de; Apon, Bernhard M.

  
 ·  A study of the sequential Michael addition-ring closure reaction of ethyl acetoacetate with chalcone: influence of quaternary ammonium cations as phase transfer catalysts
Lopes, Regina C. V.; Oliveira, Maria da Conceição F. de; Lemos, Telma L. G. de; Mattos, Marcos C. de

  
 ·  Multi-wavelength spectrophotometric determination of propofol acidity constant in different acetonitrile-water mixtures
Pissinis, Diego; Sereno, Leónides E.; Marioli, Juan M.

  
 ·  Synthesis of 4-amino-6-methyl-1,2,4-triazin-5-one-3-thione and its application in construction of a highly copper(II) ion-selective electrochemical sensor
Zamani, Hassan Ali; Rajabzadeh, Ghadier; Firouz, Ali; Ariaii-Rad, Ali Asghar

  
 ·  Spectrophotometric determination of diclofenac in pharmaceutical preparations
Souza, Rafael Leandro de; Tubino, Matthieu

  
 Short Reports
  
 ·  The preparation of a 10-membered ring macrolactone by selective ozonolysis and the role of the dihydropyran-substituent on the MCPBA-oxidation reaction profile of b-lapachone phenazines
Silva, Raphael S. F.; Guimarães, Tiago T.; Teixeira, Daniel V.; Lobato, Ana Paula G.; Pinto, Maria do Carmo F. R.; Simone, Carlos Alberto de; Soares, Janaína G.; Cioletti, Alessandra G.; Goulart, Marilia O. F.; Pinto, Antonio V.

  
 ·  Additional flavonoids from Lonchocarpus yucatanensis and L. xuul
Borges-Argáez, Rocío; Díaz, Maria Esther Poot; Waterman, Peter G.; Peña-Rodríguez, Luis M.

  
 ·  Solid state oxidation of phenols to quinones with sodium perborate on wet montmorillonite K10
Hashemi, Mohammed M.; Eftekhari-Sis, Bagher; Khalili, Behzad; Karimi-Jaberi, Zahed

  
 ·  Calorimetric study of the antibacterial activity of sodium n-alkylsulfates on the metabolism of Chromobacterium violaceum
Perles, C.E.; Volpe, P.L.O.