Cold-season oxygenated OA (COOA), a secondary OA dominated by non-fossil sources, is primarily linked to atmospherically processed biomass smoke in the presence of NOx. It is characterized by C4-C7nitro-aromatics (H:C ~ 1.3–1.5) and nitro-furans (H:C > 1.5) with 1–2 nitrogen...
1. The Concept of the Sugar Code The ubiquitous presence of post-translational modifications, especially phosphorylation, teaches the lesson that it is more than its sequence that determines a protein’s activity profile. A covalent conjugation is able to convey new properties to the protein ...
2.3. FRAP and TRAP Assays The ferric ion reducing antioxidant power (FRAP) assay is a non-specific, redox-linked, colorimetric assay that is related to the molar concentration of the antioxidant present. Since FRAP measures the ferric reducing activity of the sample, a low pH buffer is ...