TATP detection by fluorescence turn-on of Zn(salen)

INOR 455

Michael J. Knapp, mknapp@chemistry.umass.edu and Meaghan E. Germain, mgermain@chem.umass.edu. Department of Chemistry, University of Massachusetts at Amherst, 701 Lederle Graduate Research Tower, 710 North Pleasant Street, Amherst, MA 01003
Peroxide based explosives, like triacetone-triperoxide (TATP), are important targets for detection due to their broad use in improvised explosives. 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 Zn2+ to form fluorescent Zn(Salen). Detection limits are below 10nM 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 pre-treatment.

Coordination Chemistry: Applications
2:30 PM-4:50 PM, Tuesday, March 24, 2009 Salt Palace Convention Center -- Combo Rooms 253 A-B, Oral

Division of Inorganic Chemistry

The 237th ACS National Meeting, Salt Lake City, UT, March 22-26, 2009