J. Braz. Chem. Soc. vol.26 número11

Determination of Parabens in Surface Water from Mogi Guaçu River (São Paulo, Brazil) Using Dispersive Liquid-Liquid Microextraction Based on Low Density.. Solvent

The composites were prepared in three different ways by varying (i) the concentration of zeolite 13x, (ii) the incubation time of zeolite in the precursor solution

The presence of four methyl groups on 1,10-phenanthroline reduces its solar light harvesting capacity and destabilizes the 3 MLCT excited state. 22 Thus, the presence

Essential oils from irradiated material exhibited a higher content of caryophyllene oxide, δ -cadinene, and alloaromadendrene oxide-(2) at all radiation doses than the

In summary, the results indicate that extraction media containing ethanol, acetone or chloroform as main mixture extraction solvent, achieved discrimination of self-shaded versus

The adsorbent was characterized and the effect of experimental conditions on the removal efficiency of lead(II), copper(II) and zinc(II) ions from aqueous solution was

bimetallic iron(II) and sodium complexes with alkoxide and aryloxide ligands that were able to promote ring-opening polymerization of rac-lactide efficiently at room temperature

The analyses of surface water, sediments, and fish from Tijunqueiro microbasin, located in the city of Morrinhos, state of Goiás, in the Brazilian cerrado, showed no pesticide