Organic matrix effects on the formation of light-absorbing compounds from α-dicarbonyls in aqueous salt solution.

Formation of α-Hydroxycarbonyl and α-Dicarbonyl Compounds during Degradation of Monosaccharides

Novotný O., Cejpek K., Velíšek J. (2007): Formation of α-hydroxycarbonyl and α-dicarbonyl compounds during degradation of monosaccharides. Czech J. Food Sci., 25: 119–130. The formation of α-hydroxycarbonyl and α-dicarbonyl compounds from monosaccharides (glucose, fructose, arabinose, glyceraldehyde, and 1,3-dihydroxyacetone) was studied in three different model systems comprising an aqueous an...

The Isolation of Organic Compounds using Organophilic Pervaporation Membranes

Organophilic membranes provide a method of recovering organic compounds by pervaporation, which exploits the selective transport of the organic phase. The main application is in the extraction of bio-alcohols from aqueous solution. The effect of membrane composition on performance in transporting alcohols and not water at improved rates is the focus of this review. In th...

Sono-synthesis of Novel Magnetic Nanocomposite (Ba-α-Bi2O3-γ-Fe2O3) for the Solar Mineralization of Amoxicillin in an Aqueous Solution

In this study, a novel magnetic nanocomposite (Ba-α-Bi2O3-γ-Fe2O3) was successfully synthesized through a combination of ultrasound and co-precipitation method under mild conditions. The structure of the synthesized nano-composite as a visible light photocatalyst was investigated by the XRD, TEM, HRTEM, UV-vis and FT-IR. The HRTEM confirmed that the nano-magnetic composites are rods with diamet...

Adsorption of Volatile Organic Compounds from Aqueous Solution by Granular Activated Carbon (GAC) in Batch System

Secondary brown carbon formation via the dicarbonyl imine pathway: nitrogen heterocycle formation and synergistic effects.

Dicarbonyls are known to be important precursors of so-called atmospheric brown carbon, significantly affecting aerosol optical properties and radiative forcing. In this systematic study we report the formation of light-absorbing nitrogen containing compounds from simple 1,2-, 1,3-, 1,4-, and 1,5-dicarbonyl + amine reactions. A combination of spectrophotometric and mass spectrometric techniques...