Detection of recent holding of firearms: Improving the sensitivity of the PDT test

Joseph Almog; Karni L. Bar-Or; Amihud Leifer; Yair Delbar; Yinon Harush-Brosh

doi:10.1016/j.forsciint.2014.04.041

Detection of recent holding of firearms: Improving the sensitivity of the PDT test

Joseph Almog, Karni L. Bar-Or, Amihud Leifer, Yair Delbar, Yinon Harush-Brosh

Institute of Chemistry

The Hebrew University of Jerusalem

Research output: Contribution to journal › Article › peer-review

Abstract

Despite the significant improvement of the PDT test for detecting recent contact with firearms, there are still many occasions in which the modified reagent (Ferrotrace™) shows insufficient sensitivity. Two techniques have been devised and tested for the enhancement of the sensitivity of this process: exposure to water vapors and accelerated sweating. Exposure of the hand to water vapors after spraying with the reagent significantly improved the quality of the colored impressions. The average increase was by 1 quality-grade (on an arbitrary scale of 4 grades). The technique is very simple and does not require any particular skill or equipment. Mechanistic aspects of the process are also discussed.

Original language	English
Pages (from-to)	55-59
Number of pages	5
Journal	Forensic Science International
Volume	241
DOIs	https://doi.org/10.1016/j.forsciint.2014.04.041
State	Published - Aug 2014

Keywords

Ferrotrace™
Firearms
Iron complexation
Palmar sweat
Pyridyldiphenyl triazine (PDT)
Trace metal detection test (TMDT)

All Science Journal Classification (ASJC) codes

Pathology and Forensic Medicine

Access to Document

10.1016/j.forsciint.2014.04.041

Cite this

@article{00318092cb1f4e42b8ab619ae99ee5ce,

title = "Detection of recent holding of firearms: Improving the sensitivity of the PDT test",

abstract = "Despite the significant improvement of the PDT test for detecting recent contact with firearms, there are still many occasions in which the modified reagent (Ferrotrace{\texttrademark}) shows insufficient sensitivity. Two techniques have been devised and tested for the enhancement of the sensitivity of this process: exposure to water vapors and accelerated sweating. Exposure of the hand to water vapors after spraying with the reagent significantly improved the quality of the colored impressions. The average increase was by 1 quality-grade (on an arbitrary scale of 4 grades). The technique is very simple and does not require any particular skill or equipment. Mechanistic aspects of the process are also discussed.",

keywords = "Ferrotrace{\texttrademark}, Firearms, Iron complexation, Palmar sweat, Pyridyldiphenyl triazine (PDT), Trace metal detection test (TMDT)",

author = "Joseph Almog and Bar-Or, \{Karni L.\} and Amihud Leifer and Yair Delbar and Yinon Harush-Brosh",

year = "2014",

month = aug,

doi = "10.1016/j.forsciint.2014.04.041",

language = "الإنجليزيّة",

volume = "241",

pages = "55--59",

journal = "Forensic Science International",

issn = "0379-0738",

publisher = "Elsevier Ireland Ltd",

}

TY - JOUR

T1 - Detection of recent holding of firearms

T2 - Improving the sensitivity of the PDT test

AU - Almog, Joseph

AU - Bar-Or, Karni L.

AU - Leifer, Amihud

AU - Delbar, Yair

AU - Harush-Brosh, Yinon

PY - 2014/8

Y1 - 2014/8

N2 - Despite the significant improvement of the PDT test for detecting recent contact with firearms, there are still many occasions in which the modified reagent (Ferrotrace™) shows insufficient sensitivity. Two techniques have been devised and tested for the enhancement of the sensitivity of this process: exposure to water vapors and accelerated sweating. Exposure of the hand to water vapors after spraying with the reagent significantly improved the quality of the colored impressions. The average increase was by 1 quality-grade (on an arbitrary scale of 4 grades). The technique is very simple and does not require any particular skill or equipment. Mechanistic aspects of the process are also discussed.

AB - Despite the significant improvement of the PDT test for detecting recent contact with firearms, there are still many occasions in which the modified reagent (Ferrotrace™) shows insufficient sensitivity. Two techniques have been devised and tested for the enhancement of the sensitivity of this process: exposure to water vapors and accelerated sweating. Exposure of the hand to water vapors after spraying with the reagent significantly improved the quality of the colored impressions. The average increase was by 1 quality-grade (on an arbitrary scale of 4 grades). The technique is very simple and does not require any particular skill or equipment. Mechanistic aspects of the process are also discussed.

KW - Ferrotrace™

KW - Firearms

KW - Iron complexation

KW - Palmar sweat

KW - Pyridyldiphenyl triazine (PDT)

KW - Trace metal detection test (TMDT)

UR - http://www.scopus.com/inward/record.url?scp=84901446879&partnerID=8YFLogxK

U2 - 10.1016/j.forsciint.2014.04.041

DO - 10.1016/j.forsciint.2014.04.041

M3 - مقالة

C2 - 24875836

SN - 0379-0738

VL - 241

SP - 55

EP - 59

JO - Forensic Science International

JF - Forensic Science International

ER -

Detection of recent holding of firearms: Improving the sensitivity of the PDT test

Abstract

Keywords

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this