New data for analyze improvised explosives in forensic practice

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F21%3A39918675" target="_blank" >RIV/00216275:25310/21:39918675 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1117/12.2587987" target="_blank" >http://dx.doi.org/10.1117/12.2587987</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2587987" target="_blank" >10.1117/12.2587987</a>

Result language

angličtina

Original language name

New data for analyze improvised explosives in forensic practice

Original language description

Improvised explosives can be, in most cases, prepared from relatively easily accessible matters. The preparation procedure is often simple and generally known, or the information can be looked up on the Internet. The spectrum of phases which can be met concerning these materials is extremely wide and until now no systematic attention has been paid to this fact. In the past years the attention of the Institute of Criminalistics and the University of Pardubice concentrated on preparation of selected groups of these matters, to experimental explosions and to analyses of primary phases and post blast residues using wide spectrum of analytical techniques. Last year the organic analysis was focused on the detection of amines. A simple and sensitive method for the determination of free aliphatic and aromatic amines using derivatives agents as a labelling reagent by high-performance liquid chromatography with fluorescence detection (HPLC-FLD) has been developed. Derivatization conditions including reagent concentration, buffer pH, reaction time and temperature were optimized. A fluorescence derivatization - high-performance liquid chromatography (HPLC) method, which enables the femtomole-level detection of analytes, is a powerful tool for the analysis with high sensitivity and selectivity. Inorganic microanalysis was concentrated on analysis of post-blast residues from experimental explosions of explosive pyrotechnical compositions based on potassium nitrate, sodium nitrate, and barium nitrate - fuel. All the information obtained is stored in a specialized software - database, which will be used by specialized security units. All the activities described above are still in progress.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

10406 - Analytical chemistry

Project

<a href="/en/project/VI20152020004" target="_blank" >VI20152020004: Identification of residues of improvised explosives using physico-chemical analytical methods under real conditions</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proceedings of SPIE. Vol. 11750

ISBN

978-1-5106-4337-6

ISSN

0277-786X

e-ISSN

—

Number of pages

8

Pages from-to

—

Publisher name

SPIE - The International Society for Optical Engineering

Place of publication

Bellingham

Event location

ONLINE

Event date

Apr 12, 2021

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000696080900006