Target-compound method for the analysis of accelerant residues in fire debris

Wineman, Philip L.; Keto, Raymond O.

doi:10.1016/0003-2670(94)85119-0

Cited by 13 publications

(6 citation statements)

References 10 publications

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“…Ten fatty acids and 12 amino acids have been identified in the chromatogram based on their retention time and mass spectrum. The relative intensities of characteristic ions were compared with those of standards and a range of ±25% permitted for positive identification (17). Tables 1 and 2 outline the data obtained from the standards for those compounds identified in the sample.…”

Section: Resultsmentioning

confidence: 99%

“…Figure 2 shows a target compound chromatogram (TCC) of the sample. Target compound analysis is an established method for the identification of accelerant residues in fire debris approved by the American Society for Testing and Materials (ASTM) (17–19). Target compounds are identified in the chromatogram and the base ion of their mass spectrum quantified and plotted against retention time.…”

Section: Resultsmentioning

confidence: 99%

“…Numbers refer to . In (b), hexadecanoic ( 15 ) and octadecanoic ( 17 ) acids are offscale with detector responses of 2.03 × 10 6 and 1.37 × 10 6 , respectively.…”

Section: Resultsmentioning

confidence: 99%

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Development of a GC‐MS Method for the Simultaneous Analysis of Latent Fingerprint Components^*

Croxton

Baron

Butler

et al. 2006

Journal of Forensic Sciences

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Latent fingerprint residue is a complex mixture of organic and inorganic compounds. A full understanding of the composition of this mixture and how it changes after deposition is lacking. Three solvent systems were compared for the simultaneous extraction and derivatization with ethyl chloroformate of selected amino and fatty acids from a nonporous substrate (Mylar for subsequent analysis by gas chromatography-mass spectrometry. A solvent system comprised of sodium hydroxide, ethanol, and pyridine was found to be the most effective. This method was applied to the analysis of latent fingerprint residue deposited on Mylar and preliminary data are presented. Twelve amino acids (e.g., serine, glycine, and aspartic acid) and 10 fatty acids (e.g., tetradecanoic, hexadecanoic, and octadecanoic acids) were identified. The potential application of this method to further the understanding of latent fingerprint chemistry has been demonstrated.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Development of a GC‐MS Method for the Simultaneous Analysis of Latent Fingerprint Components^*

Croxton

Baron

Butler

et al. 2006

Journal of Forensic Sciences

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“…However, the increasing popularity of mass spectrometry as a detection technique after the chromatographic separation and the use of selected ion monitoring offer a better means of eliminating these interferences without the cumbersome use of acids. An extensive literature treating that topic can be found since 1982 [15][16][17][18][19][20].…”

Section: Standard Not Reapprovedmentioning

confidence: 99%

ASTM standards for fire debris analysis: a review

Stauffer

Lentini

2003

Forensic Science International

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“…While the pyrolytic key indicators of human tissues are still being studied, those of petrol have been made known and are readily available across a range of studies [15][16][17][18][19]. A standard test method has also been made available via the American Society of Testing and Materials (ASTM) E1618-06, whom provided the pyrolytic key indicators of petrol to be of alkanes, aromatics such as C 3 -C 5 alkyl benzenes, naphthalenes and indane together with distinctive chromatographic patterns expected when petrol is analysed [20].…”

Section: Introductionmentioning

confidence: 99%

Pyrolytic Key Indicators of Burnt Porcine Tissue in the Presence of Petrol Under Outdoor Conditions

2019

MJAS

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This study was conducted to provide a chemical fingerprint of burnt porcine tissue (Sus domesticus spp.) in the presence of petrol using gas chromatography-mass spectrometry (GC-MS). The pyrolysis process was followed through using two methods; in the first method, the sample was allowed to continuously burn until auto-ignition was attained and the flames self-extinguished, and in the second method, upon auto-ignition of the sample, the flame was extinguished by placing an empty lid over the tin after the size of the flame reduced to burning within the tin. Six replicates of each method were burnt outdoors and underwent passive headspace extraction using activated carbon tablets. The activated carbon tablets together with the samples were then incubated in an oven for 16 hours at 80 °C. After the incubation process, the tablets were desorbed in 1 mL of pentane and were introduced into the GC-MS. Toluene was detected from the first method whereas 1,2,4-trimethylbenzene was detected from the second method. Pyrolytic key indicators of burnt porcine tissue in the presence of petrol were not detected under the specific environmental conditions implemented in this study. The volume of petrol together with the duration and temperature during the burning process, and the source of flame, played crucial roles in the generation and detection of pyrolytic products obtained during the fire. AbstrakKajian ini dijalankan untuk menjana data cap jari kimia bagi tisu khinzir (Sus domesticus spp.) yang dibakar dengan kehadiran petrol menggunakan kromatografi gas-spektrometri jisim (GC-MS). Proses pirolisis telah dijalankan mengikut dua kaedah; kaedah pertama dilakukan dengan membiarkan sampel terbakar dan apinya terpadam dengan sendiri, dan kaedah kedua, nyalaan api yang terbentuk daripada nyalaan auto pencucuhan telah dipadamkan dengan meletakkan penutup tin ke atas permukaan tin apabila saiz nyalaan api tersebut mengecil dan hanya tertumpu di dalam tin. Setiap sampel daripada kedua-dua kaedah telah dibakar secara terbuka dan menjalani proses penyerapan menggunakan penjerapan karbon teraktif dalam bentuk tablet. Proses pembakaran ini telah direplikasi sebanyak enam kali. Penjerapan karbon teraktif bersama sampel diinkubasi di dalam ketuhar selama 16 jam pada suhu 80 °C. Selepas proses inkubasi, tablet tersebut dinyaherap dalam 1 mL pentana dan dianalisa menggunakan GC-MS. Toluena dikesan daripada kaedah pertama manakala 1,2,4-trimetilbenzena dikesan daripada kaedah kedua. Petunjuk utama pirolitik tisu khinzir tidak dapat dikesan di bawah keadaan persekitaran spesifik yang diaplikasikan dalam kajian ini. Di samping itu, didapati bahawa isipadu petrol yang dibakar, tempoh pembakaran dan suhu yang dicapai semasa proses pembakaran serta sumber api memainkan peranan yang penting dalam menentukan kehadiran petunjuk utama produk pirolitik yang terhasil daripada sesuatu proses pembakaran.

show abstract

Target-compound method for the analysis of accelerant residues in fire debris

Cited by 13 publications

References 10 publications

Development of a GC‐MS Method for the Simultaneous Analysis of Latent Fingerprint Components^*

Development of a GC‐MS Method for the Simultaneous Analysis of Latent Fingerprint Components^*

ASTM standards for fire debris analysis: a review

Pyrolytic Key Indicators of Burnt Porcine Tissue in the Presence of Petrol Under Outdoor Conditions

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Target-compound method for the analysis of accelerant residues in fire debris

Cited by 13 publications

References 10 publications

Development of a GC‐MS Method for the Simultaneous Analysis of Latent Fingerprint Components*

Development of a GC‐MS Method for the Simultaneous Analysis of Latent Fingerprint Components*

ASTM standards for fire debris analysis: a review

Pyrolytic Key Indicators of Burnt Porcine Tissue in the Presence of Petrol Under Outdoor Conditions

Contact Info

Product

Resources

About

Development of a GC‐MS Method for the Simultaneous Analysis of Latent Fingerprint Components^*

Development of a GC‐MS Method for the Simultaneous Analysis of Latent Fingerprint Components^*