Photo-induced chemiluminometric determination of Karbutilate in a continuous-flow Multicommutation assembly

Photoinduced chemiluminescence determination of carbamate pesticides

“…29 However, as mentioned above, in the assayed conditions only the carbamate pesticides containing sulphur in their chemical structure showed a PICL response. This suggests that sulphur has an important role in the PICL mechanism.…”

“…CL determination employing strong oxidants of some carbamates without sulphur in their chemical structures have been reported [24][25][26][27][28][29] in FI and multicommutation systems, but this CL behaviour was only observed in one case after UV irradiation. 29 However, as mentioned above, in the assayed conditions only the carbamate pesticides containing sulphur in their chemical structure showed a PICL response. This suggests that sulphur has an important role in the PICL mechanism.…”

Analysis of Pesticides by Flow Injection Coupled with Chemiluminescent Detection: A Review

“…In those cases, CL emission was sensitized by the use of substances such as rhodamine 6 G or sulfite. In another carbamate determinations: carbaryl (Tsogas 2006), asulam (Chivulescu 2004), karbutylate, fenobucarb and isoprocarb (Amorim 2007); CL emission was achieved after irradiation with UV light, hence a photoproduct of them was the species which produced the analytical signal after reaction with the two above mentioned oxidants. In some cases, such as aldicarb (Palomeque 2004), ziram andzineb (López-Paz 2008) the CL emission provided by that photoproduct was very weak and it was necessary the addition of quinine in order to enhance the signal obtained.…”

“…The determinations of aldicarb (Palomeque 2004), asulam (Chivulescu 2004), karbutylate, fenobucarb and isoprocarb (Amorim 2007) were carried out by using multicommutation. In that methodology the six-port rotary valve usually employed to insert the sample in FI analysis is replaced by solenoid valves.…”