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Química Nova
On-line version ISSN 1678-7064


Table of contents
Quím. Nova vol.21 no.2 São Paulo Mar./Apr. 1998


 ·  Ionic exchange of europium3+ in Y zeolite in the solid state: influence of reaction time
Nassar, Eduardo J.; Serra, Osvaldo A.; Souza-Aguiar, Eduardo F.

 ·  A new method for grouping chemotaxonomic parameters
Emerenciano, V. P.; Rodrigues, G. V.; Alvarenga, S. A. V.; Macari, P. A. T.; Kaplan, M. A. C.

 ·  Identification of the main components of guazatine fungicide by gas chromatography and gas chromatography-mass spectrometry
Arquimedes, Lavorenti; Hudson, Harry Robinson; Pianka, Max

 ·  Construction and evaluation of a tubular ion-selective electrode for hidrogen ion as a detector in flow analysis
Martelli, Patrícia B.; Reis, Boaventura F.; Zagatto, Elias A.G.; Lima, José L.F.C.; Lapa, Rui A.

 ·  Enzymatic hydrolysis of rice hull using cellulases: effect of chemical and photochemical treatments
Reyes, Juan; Peralta-Zamora, Patricio; Durán, Nelson

 ·  Electrocatalytic oxidation of b-dicarbonyl compounds using ceric methanesulphonate as mediator
Liu, Yao Cho; Romero, José Ricardo

 ·  Study of resolution enhancement methods for analysis of secondary structure of proteins by FTIR
Forato, Lucimara A.; Bernardes Filho, Rubens; Colnago, Luiz A.

 ·  Double sulfite containing copper (I) and a metal transition M(II) like Cu2SO3.M(II)SO3.2H 2O [M(II) = Cu(II), Fe(II), Mn(II) and Cd(II)]: synthesis and selectivity in M(II) incorporation
Silva, Luciana Almeida; Correa, Suzimone de Jesus; Martins, Claudia Rocha; Andrade, Jailson B. de

 ·  Alumina supported niobium oxide prepared by chemical vapor deposition: characterization by vibrational spectroscopy and thermogravimetric analysis
Silva, Carmen Lúcia T. da; Zotin, José Luiz; Camorim, Vera Lúcia L.; Faro Jr., Arnaldo C.; Rocco, Maria Luiza Miranda

 ·  Kinetical study by TGA and DSC data of the thermal decomposition of some cadmium halide adducts
Farias, Robson Fernandes de; Oliveira, Ótom Anselmo de; Scatena Júnior, Hélio; Borges, Filipe Martel de Magalhães; Silva, Ademir Oliveira da

 ·  Catalysis of the bromate reduction at a molybdenum oxide modified electrode
Bertotti, Mauro; Pletcher, Derek

 ·  Identification of pigments from Candido Portinari's oil painting "Portrait of Murilo Mendes" by Raman microscopy
Oliveira, Luiz Fernando Cappa de; Boscán, Josefina del Carmen Renata Prieto; Santos, Paulo Sérgio; Temperini, Márcia Laudelina Arruda

 ·  The new chemistry of tin
Filgueiras, Carlos A. L.

 ·  Cis-trans isomerism: from Werner to the present days
Queiroz, Salete Linhares; Batista, Alzir Azevedo

 ·  Pervaporation: a non-chromatographic continuous separation technique
Mattos, Ivanildo Luiz de; Queiroz, Roldão R. U.

 ·  The ESRg matrix for strong field d5 systems
McGarvey, Bruce R.

 Nota técnica
 ·  A simple laboratory technique for the synthesis of air sensitive metallocenes
Federman Neto, Alberto; Lanchote, Áurea Donizete

 ·  Liquid droplet: a proposal for sampling and analysis of trace gas in the atmosphere
Cardoso, Arnaldo A.; Pereira, Elisabete A.; Rocha, Júlio C.

 ·  Application of flower pigments in chemical education
Couto, Andréa Boldarini; Ramos, Luíz Antonio; Cavalheiro, Éder Tadeu Gomes

 Assuntos gerais
 ·  The new patent law, the chemical industry and the university
Rodrigues, Alexandre de Oliveira