Pre-detection of microplastics using active thermography.
Chemosphere
; 262: 127648, 2021 Jan.
Article
de En
| MEDLINE
| ID: mdl-32771705
ABSTRACT
Spectrometric analysis is one of the most widely used approaches to characterize the chemical nature of microplastics. Despite recent developments, this key step remains time consuming. The aim of this paper is to propose a new method for the pre-detection of microplastics based on mid-infrared imaging. Plastic particles were mixed with sand particles and placed on a glass filter. Infrared observation with a thermal camera shows a stronger thermal contrast measured between the filter and the plastics than between the filter and the sand, which reveals the plastic particles in a few tens of seconds. An image processing tool is then used to amplify this contrast. Furthermore, this pre-detection method makes it possible to propose hypotheses on the most probable chemical nature of the particles identified. Consequently, pre-detection using active thermography constitutes a promising way of significantly accelerating microplastic study.
Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Surveillance de l'environnement
/
Microplastiques
Type d'étude:
Diagnostic_studies
Langue:
En
Journal:
Chemosphere
Année:
2021
Type de document:
Article