skip navigation


Register for Latest Research

Stay Informed
Register with NCJRS to receive NCJRS's biweekly e-newsletter JUSTINFO and additional periodic emails from NCJRS and the NCJRS federal sponsors that highlight the latest research published or sponsored by the Office of Justice Programs.

NCJRS Abstract

The document referenced below is part of the NCJRS Virtual Library collection. To conduct further searches of the collection, visit the Virtual Library. See the Obtain Documents page for direction on how to access resources online, via mail, through interlibrary loans, or in a local library.


NCJ Number: 236879 Find in a Library
Title: Analysis and Discrimination of Electrical Tapes: Part II. Backings
Journal: Journal of Forensic Sciences  Volume:56  Issue:6  Dated:November 2011  Pages:1493-1504
Author(s): Andria H. Mehltretter, M.S.; Maureen J. Bradley, Ph.D.; Diana M. Wright, Ph.D.
Date Published: November 2011
Page Count: 12
Type: Report (Study/Research)
Format: Article
Language: English
Country: United States of America
Annotation: This study analyzed and evaluated the chemical components of the backings of 90 black electrical tapes.
Abstract: The backings of 90 black electrical tapes were analyzed to evaluate the chemical components of these films, the ability of individual techniques to discriminate samples, and the ability of the techniques combined to distinguish samples. The techniques utilized and their respective discrimination results were stereomicroscopy and physical measurements, to include observation of surface features of the backing, width, and thickness measurements (c. 64 percent); Fourier transform infrared spectroscopy (FTIR) using a microscope accessory (c. 83 percent); pyrolysis–gas chromatography/mass spectrometry (Py-GC/MS; c. 81 percent); and scanning electron microscopy/energy-dispersive spectroscopy (SEM/EDS; c. 87 percent). Ninety-four percent of the backings were discriminated through this combination of analytical methods. Finally, evaluating these results in conjunction with previously published data on the analysis of the adhesives from the same set of electrical tapes provided an overall discrimination of nearly 96 percent. (Published Abstract)
Main Term(s): Criminology
Index Term(s): Chromatography; Evidence collection; Evidence identification; Forensic sciences; Infrared techniques; Investigative techniques; Mass spectroscopy; Spectroscopy; Suspect identification
Note: Presented in part at the 61st Annual Meeting of the American Academy of Forensic Sciences, February 16–21, 2009, in Denver, CO.
To cite this abstract, use the following link:

*A link to the full-text document is provided whenever possible. For documents not available online, a link to the publisher's website is provided. Tell us how you use the NCJRS Library and Abstracts Database - send us your feedback.