J. Braz. Chem. Soc. vol.15 número5

There is currently considerable interest in the synthesis of optically active bicyclo[3.3.0]octane containing one or more functional group(s) at suitable position(s) for

The optimization of the main operational parameters of the SPME procedure (sample pH, temperature and ionic strength) was carried out both for direct (D-SPME) and headspace

Thus, the objective of the present work was to isolate and characterize the phenolic compounds present in acerola and to estimate the amount of anthocyanin pigments found in the

The values of k given in Table 1 showed that the rate of adsorption of dazomet on both adsorbents increased with increasing temperature in aqueous solution at constant

Figure 8 shows the cytotoxicity of free BBAP and inclusion complexes 1:1 and 1:2 acting on J774 cells by multi-endpoint MTT and NR. The

In this work, a matrix solid-phase dispersion extraction method was developed for separation and quantitation of the organophosphorus pesticides parathion-methyl and malathion, and

In order to select the sensing membrane which present better working characteristics for flow determination of gibberellate, conventionally shaped electrodes supporting different

After laser irradiation at 671 nm, specific degradation of uric acid was observed in the solution containing the porphyrins, as shown by the decrease in the absorbance of the 293