We investigated the effect of HCO 3 addition to C02-depleted thylakoids by means of fluorescence techniques. (1) In the presence of diuron (3-(3,4-dichlorophenyl)-l,l-dimethylurea), the net reduction of the primary quinone-type electron acceptor (Q) of Photosystem (PS) II is about 2-times faster in the absence of HCO 3 than in its presence, whether normal, heat-treated or NH 2OH-treated samples...

Las diferentes actividades agrícolas, industriales y económicas generan residuos de plaguicidas que van llegando a los cuerpos agua, contaminando lagos, ríos, suelos, biota, entre otros. Para realizar el seguimiento este tipo sustancias en medioambiente es necesario ajustar la mejor forma procedimiento análisis. Este trabajo permitió establecer las mejores condiciones extracción determinación s...

Diuron, gabapentin, sulfamethoxazole, terbutryn and terbuthylazine are emerging micro-pollutants with concentrations in water wastewater ranging from tens of ng/L to >10 μg/L levels. The Fenton oxidation catalysed either by zero-valent iron (Fe(0)) or Fe(II) salts was studied treat the targeted their mixtures at compound between 1 1000 µg/L. Fe(0)-catalytic exhibited complete degradation all in...