Turn-on fluorescence detection of H2O2 and TATP.
Peroxide-based explosives, like triacetone triperoxide (TATP), are important targets for detection because of their broad use in improvised explosives but pose challenges. We report a highly sensitive turn-on fluorescence detection for H2O2 and organic peroxides, including TATP. The detection strategy relies on oxidative deboronation to unmask H2Salen, which subsequently binds Zn(2+) to form fluorescent Zn(Salen). Sensitivity is excellent, with detection limits below 10 nM for H2O2, TATP, and benzoyl peroxide. In addition, acid treatment is necessary to sense TATP, suggesting the potential to discriminate between H2O2 and TATP based upon minimal sample pretreatment.
Germain
Meaghan E
ME
Department of Chemistry, University of Massachusetts at Amherst, Amherst, Massachusetts 01003, USA.
Knapp
Michael J
MJ
D001585:Benzoyl Peroxide / Q000032:analysis; D002614:Chelating Agents / Q000737:chemistry; D005029:Ethylenediamines / Q000737:chemistry; D053834:Explosive Agents / Q000032:analysis*; D006573:Heterocyclic Compounds, 1-Ring / Q000032:analysis*; D006861:Hydrogen Peroxide / Q000032:analysis*; D007700:Kinetics; D010084:Oxidation-Reduction; D010545:Peroxides / Q000032:analysis*; D013050:Spectrometry, Fluorescence / Q000379:methods*; D015032:Zinc / Q000737:chemistry
D002614:Chelating Agents; D005029:Ethylenediamines; D053834:Explosive Agents; D006573:Heterocyclic Compounds, 1-Ring; D010545:Peroxides; C495284:triacetone triperoxide; C011452:disalicylaldehyde ethylenediamine; D006861:Hydrogen Peroxide; D015032:Zinc; D001585:Benzoyl Peroxide