Analytical approaches for screening of per- and poly fluoroalkyl substances in food items: A review of recent advances and improvements.

Per and polyfluoroalkyl substances (PFAS) are a group of man-made chemicals characterized by their ubiquitous nature in all environmental compartments which makes them of increasing concern due to their persistence, bioaccumulation, and toxicity (PBT). Several instrumental methodologies and separation techniques have been identified in the literature for the detection and quantification of PFAS in environmental samples. In this review, we have identified and compared common separation techniques adopted for the extraction of PFAS in food items, and analytical methodologies for identification and quantification of PFAS in food items of plant and animal origin, highlighting recent advances in tandem techniques for the high selectivity and separation of PFAS related compounds as well as knowledge gaps and research needs on current analytical methodologies.

Nanomaterials as catalysts for CO transformation into value-added products: A review.

Carbon dioxide (CO is the most important greenhouse gas (GHG), accounting for 76% of all GHG emissions. The atmospheric CO concentration has increased from 280 ppm in the pre-industrial era to about 418 ppm, and is projected to reach 570 ppm by the end of the 21 century. In addition to reducing CO emissions from anthropogenic activities, strategies to adequately address climate change must include CO capture.