Ultrahigh sensitivity and extremely low limit of detection of picric acid with ionic-liquid modified poly(diphenylacetylene)
Guangze Hu, Manyu Chen, Zuping Xiong, Haoyuan Hu, Haoke Zhang, Jing Zhi Sun, Ben Zhong Tang
Abstract
An ionic liquid-modified polydiphenylacetylene derivative achieves ultra-high sensitivity ( K sv > 10 5 ) and selectivity for picric acid detection, driven by electrostatic attraction, charge transfer, and fluorescence resonant energy transfer.
Topics & Concepts
Picric acidDiphenylacetyleneDetection limitIonic liquidSensitivity (control systems)FluorescenceChemistryFörster resonance energy transferSelectivityPhotochemistryAnalytical Chemistry (journal)ChromatographyOrganic chemistryOpticsPhysicsElectronic engineeringCatalysisEngineeringLuminescence and Fluorescent MaterialsMolecular Sensors and Ion DetectionCovalent Organic Framework Applications