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NCJ Number: 51787 Find in a Library
Title: IDENTIFICATION OF ACCELERANTS IN FIRE RESIDUES BY CAPILLARY COLUMN GAS CHROMATOGRAPHY
Journal: JOURNAL OF FORENSIC SCIENCES  Volume:23  Issue:4  Dated:(OCTOBER 1978)  Pages:662-671
Author(s): A T ARMSTRONG; R S WITTKOWER
Corporate Author: American Acad of Forensic Sciences
United States of America
Date Published: 1978
Page Count: 11
Sponsoring Agency: American Acad of Forensic Sciences
Colorado Springs, CO 80901-0669
University of Texas at Arlington
Arlington, TX 76019
Sale Source: University of Texas at Arlington
Dept of Chemistry
Arlington, TX 76019
United States of America
Type: Report (Study/Research)
Language: English
Country: United States of America
Annotation: THIS SERIES OF EXPERIMENTS USED CAPILLARY COLUMN GAS CHROMATOGRAPHY TO ANALYZE RESIDUES FROM TYPICAL ARSON CASES. THE RESULT IS A SERIES OF CHROMATOGRAPHS WHICH CAN BE USED AS A REFERENCE BASE.
Abstract: THE PURPOSE OF THIS STUDY WAS TO BUILD A FILE OF CHROMATOGRAPHS REPRESENTATIVE OF COMMON FIRES OF SUSPICIOUS ORIGIN AND TO EXPLORE TECHNIQUES FOR THE RAPID IDENTIFICATION OF ACCELERANTS IN FIRE RESIDUES. THREE COMMON COMBUSTIBLE MATERIALS WERE USED: FIR, YELLOW PINE, AND NYLON CARPET WITH PAD. EACH WAS TREATED WITH FIVE DIFFERENT COMMON ACCELERANTS: NUMBER 2 DIESEL FUEL, PAINT THINNER, CHARCOAL LIGHTER FLUID, AND TWO GRADES OF GASOLINE. THE TECHNIQUES USED ARE DESCRIBED IN DETAIL AND THE CHROMATOGRAMS DEVELOPED ARE REPRODUCED. THE MOST EFFECTIVE TECHNIQUE WAS LOW-TEMPERATURE STEAM-DISTILLATION FOR PERIODS OF 3.5 TO 48 HOURS TO LIFT THE MOLECULAR COMPONENTS FROM THE SIMULATED ARSON SAMPLES. THE GAS CHROMATOGRAPH USED WAS FITTED WITH SUPPORT-COATED OPEN-TUBULAR COLUMNS. KOVAT'S INDICES WERE USED FOR SUBSTANCE IDENTIFICATION. LONGER DISTILLATION TIMES WERE NEEDED FOR COMPLETE RECOVERY OF HIGH BOILING-POINT COMPONENTS NEEDED FOR THE IDENTIFICATION OF ACCELERANT. TABLES PRESENT EXPERIMENT DATA. REFERENCES AND TABULAR DATA ARE INCLUDED. (GLR)
Index Term(s): Arson; Chromatography; Crime laboratories; Evidence identification; Studies; Techniques; Trace evidence
To cite this abstract, use the following link:
http://www.ncjrs.gov/App/publications/abstract.aspx?ID=51787

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