Analytical strategy photodegradation/chemiluminescence/continuous-flow multicommutation methodology for the determination of the herbicide Propanil

A critical review on photochemical conversions in flow analysis

“…In spite of the predominance of flow injection with confluent streams and continuous solution pumping, other flow approaches (e.g. multicommutation [61], multipumping [62,63], flow-batch [55], and sequential injection analysis, SIA [64][65][66]) as well as sampling strategies (e.g. merging zones [18]) have also been successfully exploited.…”

“…This is an effective approach aiming at more environmental friendly analytical methods, as demonstrated in the determination of the herbicide propanil in waters [61], ciprofloxacin and dexamethasone [171], thiamine [80] and indomethacin [172] in pharmaceutical formulations, piceid in foodstuff [173] and diazepam added to alcoholic beverages [174] The reagentless photochemical cleavage of imidacloprid producing nitrite was the basis of a chemiluminometric procedure able to detect as low as 1.5 ng of the insecticide [175].…”

A review on applications of chemiluminescence detection in food analysis

“…The method has been successfully applied to the determination of trace DDVP residue in vegetable samples. Based on coupling photo degradation, CL and multicommutation continuous-flow methodology [88] for the determination of the pesticide propanil were studied. A photo-CL system for the determination of propanil was presented.…”

Quantum dot induced phototransformation of 2,4-dichlorophenol, and its subsequent chemiluminescence reaction

“…The UV or visible light was used as a clean and inexpensive "reagent" for the derivatization of an analyte, as photochemical transformation can offer an effective and reagent-less means for obtaining derivatives with improved CL properties. Based on UV transformation, a series of CL methods were developed for the detection of pesticides [20][21][22]. However, the high energy light source may cause the formation of complicated photoproducts, hence it is difficult to elucidate the mechanism of the subsequent CL reactions.…”