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Química Nova
Print version ISSN 0100-4042


Table of contents
Quím. Nova vol.25 no.4 São Paulo July 2002

 ·  Synthesis and characterization of oxovanadium (IV) dithiocarbamates with pyridine
Doadrio, Antonio L.; Sotelo, José; Fernández-Ruano, Ana

        · abstract in English     · text in English     · pdf in Englishpdf in English
 ·  Study of degradation of the herbicide 2,4- dichlorophenoxyacetic acid (2,4-d) by gamma radiation from cobalto- 60 in aqueous solution containing humic acid
Campos, Sandro Xavier de; Vieira, Eny Maria

 ·  Evolutionary tendency of coumarin-bearing families in angiospermae
Ribeiro, Claudia Valeria Campos; Kaplan, Maria Auxiliadora Coelho

 ·  Study of the ground-state geometry of silicon clusters through artificial neural networks
Lemes, Maurício Ruv; Dal Pino Júnior, Arnaldo

 ·  Influence of organic matter on the adsorption of triadimenol fungicide by soil
Lopes, Nilva Pereira; Queiroz, Maria Eliana Lopes Ribeiro de; Neves, Antônio Augusto; Zambolim, Laércio

 ·  Determination of copper, aluminum, and iron in basaltic soils by sequential extractions
Costa, Antonio Carlos Saraiva da; Almeida, Vitor de Cinque; Lenzi, Ervim; Nozaki, Jorge

 ·  Spectrophotometric determination of metamizol in pharmaceutical formulations by flow injection triiodide generation
Pereira, Airton Vicente; Penckowski, Luciane; Vosgerau, Marcos; Sassá, Michelli Fernanda; Fatibello Filho, Orlando

 ·  Sonochemical production of oxidizing species in water solution saturated with carbon tetrachloride
Borges, Sivanildo da Silva; Korn, Mauro

 ·  p-anisidinepropylsilica xerogel: thermal stability and resistance to leaching by solvents
Franken, Leonardo; Santos, Lisiane S. dos; Caramão, Elina B.; Costa, Tania M. H.; Benvenutti, Edilson V.

 ·  Protection studies of saccharomyces cerevisiae cells for the use in reduction reactions in organic media
Nascimento, Maria da Graça; Zanotto, Sandra Patricia; Melegari, Sílvia Pedroso; Moran, Paulo J. S.

 ·  The impact of chromium on biological systems
Ferreira, Alba Denise de Queiroz

 ·  Dynamics of unimolecular reactions in gas phase: deviations from statistical behavior
Martínez-Núñez, Emilio; Vázquez, Saulo A.

        · abstract in English     · text in Spanish     · pdf in Spanishpdf in Spanish
 ·  Glyphosate: properties , toxicity, use and legislation
Amarante Junior, Ozelito Possidônio de; Santos, Teresa Cristina Rodrigues dos; Brito, Natilene Mesquita; Ribeiro, Maria Lúcia

 ·  DNA damage induced by 5-aminolevulinic acid: a possible association with the development of hepatocellular carcinoma in acute intermittent porphyria patients
Onuki, Janice; Teixeira, Priscila C.; Medeiros, Marisa H.G.; Di Mascio, Paolo

 ·  Detection of adulterations in food products containing milk and/or milk proteins
Veloso, Ana Cristina A.; Teixeira, Natércia; Ferreira, Isabel M.P.L.V.O.; Ferreira, Margarida A.

 ·  Stationary phases for reversed phase high performance liquid chromatography (RP-HPLC) based on functionalized inorganic oxide surfaces
Tonhi, Edivan; Collins, Kenneth E.; Jardim, Isabel C. S. F.; Collins, Carol H.

 ·  Electron transfer in inorganic mixed-valence systems
Rocha, Reginaldo C.; Toma, Henrique E.

 ·  DC electrical resistivity measurements in solids: how to proceed correctly
Girotto, Emerson M.; Santos, Ivair A.

 ·  Vibrational spectroscopy: procedures for the calculation of the CO stretchings of carbonyl complexes and determination of their IR and Raman activity
Oliveira, Gelson Manzoni de

 ·  Utilization of repeatability and reproducibility values obtained by interlaboratorial program as parameters to control precision of analytical method: water determination by Karl Fischer method
Queenie, Siu Hang Chui; Antonoff, Heloísa Burkhardt; Olivieri, José Carlos

 ·  Microwaves in organic synthesis
Sanseverino, Antonio Manzolillo

 ·  Synthetic methods for preparation of substituted 2,2'-bipyridines
Donnici, Claudio Luis; Oliveira, Ione Maria Ferreira de; Temba, Eliane Sílvia Codo; Castro, Maurício Costa Rogério de

 Nota técnica
 ·  Comparison of methodologies for royal jelly's moisture determination
Garcia-Amoedo, Luis Henrique; Almeida-Muradian, Ligia Bicudo de

 ·  Identification of natural pigments from vegetal species using paper chromatography
Okumura, Fabiano; Soares, Márlon Herbert Flora Barbosa; Cavalheiro, Éder Tadeu Gomes

 ·  Natural pH indicators: using paper or solution?
Terci, Daniela Brotto Lopes; Rossi, Adriana Vitorino

 Assuntos gerais
 ·  History of chemistry and geology: Joseph Black and James Hutton as references for science education
Sicca, Natalina Aparecida L.; Gonçalves, Pedro Wagner

 ·  Master and doctors of chemistry from brazilian universities: training and jobs
Braga, Mauro Mendes; Azevedo, Sérgio de