A new generation of sensors for detection of organophosphates have been developed. Based on platinum sensors that exhibit increased fluorescence response to organophosphates, novel 2-pyridyl-1,2-butenyl-4-ol structures have been assembled focusing on a thiazole core. These reactivity-driven phosphate sensors were previously plagued by acids generated by phosphoryl halide degradation. Therefore, the structures could not be directly polymer-bound for incorporation into a detector. In order to circumvent this limitation, a new class of reactivity-based sensor structures has been prepared. They contain functional groups that allow the sensor to be incorporated into or directly bound to a polymer (e.g., polystyrene). Incorporation of acid-scavenging additives mitigates acid sensitivity and promotes selectivity for organophosphoryl halide simulants in both liquid and gas-phase samples.

Detection of organophosphates using a new generation of polymer-incorporated fluorescent sensors

256th National Meeting (2018)

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