1. Analysis of hydrogen peroxide field samples by HPLC/FD and HPLC/ED in DC mode 
Megan Tarvin, Bruce McCord, Kelly Mount, Mark L. Miller 
Forensic Science International 
Volume 209, Issue 1, Pages (June 2011)
DOI: /j.forsciint
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2. Fig. 1
Analysis of a plastic remnant by HPLC/ED in DC mode. Conditions: Dionex CarboPac PA10 analytical column, isocratic elution with 150mM NaOAc at pH 10.5, flow rate 1mL/min, 100μL injection, T=45°C, DC mode with E=+0.4V. Peak 1, hydrogen peroxide, Rt 1.902min.
Forensic Science International  , DOI: ( /j.forsciint )
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3. Fig. 2
Analysis of a plastic remnant by HPLC/FD. Conditions: Dionex C-18 analytical column, isocratic elution with 1×10−3M H2SO4/1×10−4M EDTA at flow rate 0.6mL/min, 100μL injection, reagent 8μM hemin/80μM POPHA in ammonia buffer pH 9.5 at flow rate 0.2mL/min, post-column reactor 2m, T=25°C, base 0.1M NaOH at flow rate 0.2mL/min, λex=320nm, λem=405nm. Peak 1, hydrogen peroxide, Rt 5.195min.
Forensic Science International  , DOI: ( /j.forsciint )
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4. Fig. 3
Structures of TATP (left) and HMTD (right). Concentrated hydrogen peroxide is a precursor in the manufacturing of both of these explosives.
Forensic Science International  , DOI: ( /j.forsciint )
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5. Fig. 4
Analysis of post-blast residue of TATP by HPLC/ED in DC mode. Conditions: Dionex CarboPac PA10 analytical column, isocratic elution with 150mM NaOAc pH 10.5, flow rate 1mL/min, 100μL injection, T=45°C, DC mode with E=+0.4V. Peak 1, hydrogen peroxide, Rt 1.995min.
Forensic Science International  , DOI: ( /j.forsciint )
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6. Fig. 5
Analysis of post-burn residue of HMTD by HPLC/FD. Conditions: Dionex C-18 analytical column, isocratic elution with 1×10−3M H2SO4/1×10−4M EDTA at flow rate 0.6mL/min, 100μL injection, reagent 8μM hemin/80μM POPHA in ammonia buffer pH 9.5 at flow rate 0.2mL/min, post-column reactor 2m, T=25°C, base 0.1M NaOH at flow rate 0.2mL/min, λex=320nm, λem=405nm. Peak 1, hydrogen peroxide, Rt 5.217min.
Forensic Science International  , DOI: ( /j.forsciint )
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7. Fig. 6
Analysis of post-burn residue of HMTD by HPLC/ED in DC mode. Conditions: Dionex CarboPac PA10 analytical column, isocratic elution with 150mM NaOAc pH 10.5, flow rate 1mL/min, 100μL injection, T=45°C, DC mode with E=+0.4V. Peak 1, unknown, Rt 1.526min; peak 2, hydrogen peroxide, Rt 1.927min; peak 3, unknown, Rt 2.984min. The unknown peaks may correspond to combustion products of HMTD or to materials remaining from the synthesis of the material.
Forensic Science International  , DOI: ( /j.forsciint )
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8. Fig. 7
Analysis of post-burn residue of HMTD by HPLC/FD. Conditions: Dionex C-18 analytical column, isocratic elution with 1×10−3M H2SO4/1×10−4M EDTA at flow rate 0.6mL/min, 100μL injection, reagent 8μM hemin/80μM POPHA in ammonia buffer pH 9.5 at flow rate 0.2mL/min, post-column reactor 2m, T=25°C, base 0.1M NaOH at flow rate 0.2mL/min, λex=320nm, λem=405nm. Peak 1, hydrogen peroxide, Rt 5.242min. Unlike in the analysis of intact HMTD, no extraneous peaks are noted in the HPLC/FD chromatogram of post-blast HMTD.
Forensic Science International  , DOI: ( /j.forsciint )
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