GC-MS qualitative analysis of the volatile, semivolatile and volatilizable fractions of soil evidence for forensic application: A chemical fingerprinting.
Forensic analysis
GC-MS
Soil
Soil volatile fraction
Journal
Talanta
ISSN: 1873-3573
Titre abrégé: Talanta
Pays: Netherlands
ID NLM: 2984816R
Informations de publication
Date de publication:
01 Nov 2020
01 Nov 2020
Historique:
received:
03
03
2020
revised:
15
06
2020
accepted:
16
06
2020
entrez:
5
9
2020
pubmed:
6
9
2020
medline:
6
9
2020
Statut:
ppublish
Résumé
This paper proposes a GC-MS analytical method that can be used in forensic investigations, for comparative or provenance studies of soils with the aim to reconnect the evidence to their origin. The volatile, semi-volatile and volatilizable compounds present in soil samples of different sources have been extracted and qualitatively analyzed by GC-MS. The different fractions were extracted by ultrasonic assisted extraction (UAE), and the volatilizable compounds were derivatized by BSTFA-TMCS as silylating agent. Sixty-five soil samples from different locations in northern Italy were collected, analyzed and a GC-MS "fingerprint database" has been created in order to easily access the data for the unknown soil sample provenance obtained with the same procedure and GC apparatus. With this purpose, the origin of blind samples, chosen randomly from those collected, was identified based on a qualitative comparison of the MS chromatographic profiles, which obviates the need for quantitative analyses.
Identifiants
pubmed: 32887045
pii: S0039-9140(20)30595-6
doi: 10.1016/j.talanta.2020.121304
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
121304Informations de copyright
Copyright © 2020 Elsevier B.V. All rights reserved.