On-line microcolumn-based dynamic leaching method for investigation of lead bioaccessibility in shooting range soils.
ICP OES assays
Leaching kinetics
Metal bioaccessibility
On-line column extraction
Real-time metal analysis
Journal
Chemosphere
ISSN: 1879-1298
Titre abrégé: Chemosphere
Pays: England
ID NLM: 0320657
Informations de publication
Date de publication:
Oct 2020
Oct 2020
Historique:
received:
12
02
2020
revised:
06
05
2020
accepted:
07
05
2020
pubmed:
24
5
2020
medline:
24
7
2020
entrez:
24
5
2020
Statut:
ppublish
Résumé
In this work, a miniaturized flow-through leaching test is presented for rapid screening of potential chemical extractants to explore the bioaccessibility of lead (Pb) in contaminated shooting range soils in Valkeala, Finland. The method combines the versatility of microcolumn-based extraction methods with on-line inductively coupled plasma optical emission spectrometry (ICP OES) analysis for expedient assessment of the magnitude of the bioaccessible pools and the leaching kinetics of lead from polluted soils under variable physicochemical scenarios. Acids and salt solutions were studied as potential extractants. The efficiency of the extractants relative to the initial total amount of lead in the soil sample (509 ± 21 mg/kg) were found to increase in the following order: 0.11 M acetic acid (55%) < 1 M MgCl
Identifiants
pubmed: 32445998
pii: S0045-6535(20)31215-7
doi: 10.1016/j.chemosphere.2020.127022
pii:
doi:
Substances chimiques
Soil
0
Soil Pollutants
0
Trace Elements
0
Lead
2P299V784P
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
127022Informations de copyright
Copyright © 2020 Elsevier Ltd. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.