2 documents found, page 1 of 1
Sintese e caracterização de complexos de ferro e galio de interesse bioinorganico
Pereira, Claudia MaraDissertação (Mestrado) - Universidade Federal de Santa Catarina, Centro de Ciencias Fisicas e Matematicas; Foram sintetizados e caracterizados dois novos ligantes binucleantes 2,6-bis-[(2-hidroxibenzil)(2-hidroxifenil)aminometil]-4-metilfenol, 2-bis[(2-metilpiridil)aminometil]-6[(2-hidroxibenzil)(2-hidroxifenil)aminometil]-4-metilfenol e cinco novos complexos binucleares. As propriedades espectroscópicas e elet...
Microwave as an alternative to sample preparation in the foliar tissue silicon ...
Pereira, Claudia Mara; Hansel, Fabrício Augusto; Radomski, Maria Izabel; Verdeckin, Maisa GottardoThe aim of this work was to test the viability of microwave digestion for the colorimetric determination of silicon in foliar tissues of wood species. In the test, the correlation coefficient was 0.998 in the concentration range of 0.4 to 7 mg.g-1. Spiked cellulose samples were used and the recovery was high than 90 % in two tested concentrations (2 e 4 mg.g-1). The obtained coefficients of variation were equal...