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Química Nova
On-line version ISSN 1678-7064


Table of contents
Quím. Nova vol.20 no.5 São Paulo Sept./Oct. 1997


 ·  Complete assignments of chemical shifts of the hydrogen and carbon-13 atoms of plumieride isolated from Allamanda cathartica
Malheiros, Angela; Schuquel, Ivânia T. A.; Vidotti, Gentil José

 ·  Solasodine from solanum species of the federal district
Mola, José L.; Araujo, Elis Regina de; Magalhães, Gouvan C. de

 ·  Promotor action of beryllium in catalysts for styrene production
Barbosa, Mário Nilo Mendes; Carvalho, Marly Fernandes Araújo de; Rangel, Maria do Carmo

 ·  Chemometric alternatives for resolution of classical analytical problems: spectrophotometric determination of zirconium-hafnium mixtures
Peralta-Zamora, Patricio; Cornejo-Ponce, Lorena; Nagata, Noemi; Poppi, Ronei J.

 ·  Collagen: calcium phosphate composites. Preparation and characterization
Bet, Marcos Roberto; Goissis, Gilberto; Plepis, Ana Maria de Guzzi

 ·  Lattice enthalpies (DMHmº) of adducts using an empirical equation supported in tg data
Farias, Robson Fernandes de

 ·  Quantitative evaluation of cardenolides in a brazilian digitalis lanata cultivar and perspectives of its industrial use
Braga, Fernão Castro; Kreis, Wolfgang; Récio, Rubens Almeida; Oliveira, Alaíde Braga de

 ·  Inorganic membranes and catalytic reactors
Rangel, Maria do Carmo

 ·  Separation Mechanisms in Capillary Electrophoresis
Tavares, Marina F. M.

 ·  Simultaneous determination of anions by capillary electrophoresis: characteristics and applications
Colombara, Rosana; Tavares, Marina F. M.; Massaro, Sérgio

 ·  Potentiometric transducers based in conducting polymers: analytical applications
Rover Júnior, Laércio; Oliveira Neto, Graciliano de; Kubota, Lauro Tatsuo

 ·  Study of the alcoholic fermentation of sugars diluted solutions through flow microcalorimetry
Volpe, Pedro L. O.

 ·  Photophysics of carotenoids and the antioxidant role of b-carotene
Cardoso, Sergio Luis

 ·  Taylor dispersion technique for investigation of diffusion in liquids and its applications
Loh, Watson

 ·  Use of theoretical calculations as a tool for the detection of molecules in the interestellar medium: the case of the cnnh (n= 1, 3 and 5) carbenes
Silva, João Bosco P. da; Neto, Benício B.; Ramos, Mozart N.

 Nota técnica
 ·  Project and construction of a bioreactor for reactions catalyzed by baker's yeast (saccharomyces cerevisiae)
Pereira, Ricardo de Souza

 ·  Preparation and characterization of single crystal electrodes
Perez, Joelma; Villullas, Hebe M.; Gonzalez, Ernesto R.

 ·  Analysis of extracts of plants by tlc: a methodology applied in the "organic chemistry" discipline
Chaves, Mariana H.

 ·  Analysis of extracts of plants by tlc: a methodology applied in the "organic chemistry" discipline
Lopes, Alice Ribeiro Casimiro

 Assuntos gerais
 ·  The three principles and the diseases viewed by two chemical philosophers
Porto, Paulo Alves

 ·  In Memorian
Comasseto, João Valdir