Photolytic and photocatalytic degradation of 6-chloronicotinic acid

Determination of nitenpyram and 6‐chloronicotinic acid in environmental samples by ion chromatography coupled with online photochemically induced fluorescence detector

“…It was observed both NTP and 6‐CNA does not show intrinsic fluoresce at any pH, however when their basic aqueous solution was irradiated with UV radiation then high PIF signals were obtained for both analytes as shown in Figure A and B. It is probably due to the formation of fluorescent photoproducts after possible C–N and C–Cl bond cleavage of NTP under UV light in basic media . The appearance of electron donating groups (‐NH 2, ‐COOH and ‐OH) and ionization of active methylene group of NTP in basic media can increase the resonance contributing structures of NTP, which results in its high fluorescence intensity .…”

Supported TiO2solar photocatalysis at semi-pilot scale: degradation of pesticides found in citrus processing industry wastewater, reactivity and influence of photogenerated species

“…Since these pesticides are toxic, bioaccumulative and persistent in the environment, aquatic organisms could be at risk of acute or chronic toxicity . The amount of residual pesticides detected is constantly increasing worldwide, and regulations regarding their maximum residue levels (MRLs) in commodities have become more and more stringent . Therefore, new technologies able to reduce the presence of these compounds in bodies of water are necessary.…”

Biological assessment of neonicotinoids imidacloprid and its major metabolites for potentially human health using globular proteins as a model

“…For example, 6-chloronicotinic acid is an end degradation product of imidacloprid and it has been confirmed that this compound generally exists in fruits, honey, soil and vegetables [66,67]. Further, 6-chloronicotinic acid was found to be largely soluble in water, and for this reason it could probably be leached from the terrestrial ecosystem toward surface and ground water and eventually pass into the food chain.…”