Incineration By-Products of AA2, NC Fines, and NG Slums

Day, Jean; Kemme, Patricia A.

doi:10.21236/ada396179

Cited by 5 publications

(8 citation statements)

References 1 publication

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“…VOC from the Incineration of AA2. Analysis of the AA2 VOC adsorbent trap detected primarily the background peaks benzene, toluene, and xylene but also observed VOC PIC generated by AA2 incineration including benzofuran, benzonitrile, and naphthalene (30). Several byproducts defy identification because of a saturated mass spectrum.…”

Section: Resultsmentioning

confidence: 99%

“…Several byproducts defy identification because of a saturated mass spectrum. Analysis of the VOC impinger detected the presence of the polar byproducts 2,5-dihydro-1H-pyrrole, dimethylcyanamide, 2(5H)-furanone, 2-furancarboxaldehyde, benzaldehyde, 2-hydroxybenzaldehyde, and 2-nitrophenol (30). VOC samples were collected in duplicate, and both contained identical byproducts.…”

Section: Resultsmentioning

confidence: 99%

“…Analysis of the SVOC from incineration of AA2 proved to be richer in information than VOC analysis. Successful identification of many of the smaller peaks was achieved by a subsequent analysis of the same sample using a quadrupole GC/MS with a lower detection mass value of 10 amu (30). Table 1 lists the compounds found in the extraction of the XAD resin.…”

Section: Resultsmentioning

confidence: 99%

“…The mass scan for SVOC analyses used a mass range of 50-430 amu. Further details on the sampling and analysis of the incinerator effluent stream are available elsewhere (30).…”

Section: Experimental Methodsmentioning

confidence: 99%

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Use of Pyrolysis GC/MS for Predicting Emission Byproducts from the Incineration of Double-Base Propellant

Kemme

Day

Cochran³

2002

Environ. Sci. Technol.

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Gas chromatography/mass spectrometry was used to analyze the pyrolytic byproducts from an Army-unique propellant compound (AA2) that is composed of predominantly nitrocellulose and nitroglycerin. Compounds produced by AA2 pyrolysis were compared to compounds detected in the gaseous effluent from AA2 incineration. The light permanent gases and most of the higher molecular weight byproducts produced by AA2 incineration are replicated by laboratory pyrolysis on AA2. The reverse case also holds whereby 18 out of 24 high molecular weight AA2 pyrolytic byproducts are found in the incinerator emissions. Poor matching, however, was obtained between the two processes for the volatile, water-soluble species. None of these low molecular weight compounds produced under pyrolytic conditions were detected in the AA2 incinerator samples, likely indicating inefficient capture of these compounds from the effluent stream. Separate pyrolytic degradation of the individual components of AA2 provides evidence that nearly all of the incomplete combustion products detected during incineration originate not from the prevalent energetic ingredients but rather from the minor and trace additives in AA2. In addition, pyrolysis successfully identified the AA2 components capable of surviving the incineration process intact. This work illustrates the potential of bench-scale pyrolysis for predicting incineration behavior.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

“…The mass scan for SVOC analyses used a mass range of 50-430 amu. Further details on the sampling and analysis of the incinerator effluent stream are available elsewhere (30).…”

Section: Experimental Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Use of Pyrolysis GC/MS for Predicting Emission Byproducts from the Incineration of Double-Base Propellant

Kemme

Day

Cochran³

2002

Environ. Sci. Technol.

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“…A single analysis was immediately performed in the laboratory using SPME/GC [11,17]. The chromatogram of the extracted analytes yielded the quantitative data on several organic GSR compounds including naphthalene, a polycyclic aromatic hydrocarbon which is often produced by the incomplete combustion of gunpowder [2,[24][25][26] and previously proposed for dating purposes [2,10,11,19]. The peak area of naphthalene was therefore selected as a suitable aging indicator, and a specific value (say q = 28.00 a.u.…”

Section: Organic Gsr Analysis Of the Spent Cartridgementioning

confidence: 99%

Estimating the time since discharge of spent cartridges: A logical approach for interpreting the evidence

Gallidabino¹,

Weyermann²,

Romolo³

et al. 2013

Science & Justice

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Estimating the time since discharge of a spent cartridge or a firearm can be useful in criminal situations involving firearms. The analysis of volatile gunshot residue remaining after shooting using solid-phase microextraction (SPME) followed by gas chromatography (GC) was proposed to meet this objective. However, current interpretative models suffer from several conceptual drawbacks which render them inadequate to assess the evidential value of a given measurement. This paper aims to fill this gap by proposing a logical approach based on the assessment of likelihood ratios. A probabilistic model was thus developed and applied to a hypothetical scenario where alternative hypotheses about the discharge time of a spent cartridge found on a crime scene were forwarded. In order to estimate the parameters required to implement this solution, a non-linear regression model was proposed and applied to real published data. The proposed approach proved to be a valuable method for interpreting aging-related data.

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Capillary electrophoresis fingerprinting of 8-aminopyrene-1,3,6-trisulfonate derivatized nitrocellulose after partial acid depolymerization

Alinat¹,

Delaunay²,

Przybylski³

et al. 2015

Journal of Chromatography A

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Incineration By-Products of AA2, NC Fines, and NG Slums

Cited by 5 publications

References 1 publication

Use of Pyrolysis GC/MS for Predicting Emission Byproducts from the Incineration of Double-Base Propellant

Use of Pyrolysis GC/MS for Predicting Emission Byproducts from the Incineration of Double-Base Propellant

Estimating the time since discharge of spent cartridges: A logical approach for interpreting the evidence

Capillary electrophoresis fingerprinting of 8-aminopyrene-1,3,6-trisulfonate derivatized nitrocellulose after partial acid depolymerization

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