[PDF] Top 20 Quím. Nova vol.34 número2

... Com certeza isso ocorrerá no tempo adequado, mas é importante se manter a elevação do nível de investimento a patamares similares aos países mais desenvolvidos, melhorar a infraestrut[r] ... See full document

... The aim of the present work was the development of a stability- indicating UPLC method for the determination of RSV and its related impurities in the pharmaceutical dosage forms under f[r] ... See full document

... forward direction. about 10 KJ, the reaction is suppose to reach equilibrium. 22 In our interaction studies, ∆ G ranged from 10-20 KJ, indicating that the complexation reaction was p[r] ... See full document

... Com a redução do luxo da ventilação forçada sobre o trocador de calor, obtivemos produção média de água destilada similar à es- peciicada pelo fabricante do destilador.. Tal reduçã[r] ... See full document

... In view of the application of galactomannans in the develo- pment of solid pharmaceutical dosage forms in conventional or modiied drug delivery systems, particularly tablets and capsule[r] ... See full document

... Bioguided fractionation of Agelas cerebrum crude extract resulted in isolation of four bromopyrrole and four bromopyrrole aminoimidazole alkaloids, identified as 5-b[r] ... See full document

... To take full advantage of the developed SIA procedure, several studies were performed with the aim of investigating the inluence of sample and reagent volumes, reagent concentration, l[r] ... See full document

... Genetic algorithm and multiple linear regression (GA-MLR), partial least square (GA-PLS), kernel PLS (GA-KPLS) and Levenberg- Marquardt artiicial neural network (L-M ANN) techniques were[r] ... See full document

... Compound 1 was identiied as a-amyrin after comparison of its physical-chemical data with literature and by co-TLC with an authentic sample.. Compound 2 was rapidly [r] ... See full document

... According to the HMW-PAH biodegradation rate, determined during the period of 0-30 days, it was observed that the presence of glycerol, either combined with fertilizer or adde[r] ... See full document

... The algorithm was numerically stable in relation to different initial conditions and also it was more robust with respect to random noises in the experimental concentration than Lev[r] ... See full document

... Adicionalmente se determinó el producto EoWo, la Figura 7 muestra un comportamiento lineal entre el producto EoWo determi- nado mediante la ecuación de Stoeckli-Kraehenbuehl con[r] ... See full document

... 30 Aunque no se encontraron valores de estas igu- ras de mérito para el análisis unielemental y/o simultáneo en orina, a modo de comparación, pueden señalarse los límites de detección [r] ... See full document

... The Langmuir model (Figure 7) was more effective than the Freundlich model in describing the absorption of Fe(II) onto Ucides cordatus crab shell because it shows a higher c[r] ... See full document

... Figure 2 shows the comparison of the results for the polarization curves of Al-356 alloy obtained in 0.5 M NaCl solution at alkaline pH (11.5) and neutral pH (6.5), with an electrode r[r] ... See full document

... In vitro release proile of naproxen loaded in PCL nanoparticles (A), dissolution proile of free naproxen (B) and regression linear of the release data utilizing the Higuchi’s model (C)[r] ... See full document

... An aliquot of the hexane phase (6 g) was subjected to silica gel column chromatography and eluted with hexane, ethyl acetate and then methanol, gradually increasing the polarity, yielding 239 fractions which were ... See full document

... Regarding preliminary stability studies, no statistical difference was observed for the values of mean size and polydispersity index of formulations during the storage. However, a[r] ... See full document

... The XRD spectrum of RHS (Figure 2S, supplementary material) showed a broad peak at the 2 θ value of 22 degrees, a characteristic of silica in amorphous form which is suitable for the[r] ... See full document

... for its high sensitivity and selectivity. But the long analysis time (10 min) may not meet the requirement for high throughput and speed in biological specimen analysis of pharmacokinetic (PK) studies. With a comparative ... See full document