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International Journal of Environment Science and Technology
Center for Environment and Energy Research and Studies (CEERS)
ISSN: 1735-1472 EISSN: 1735-1472
Vol. 12, No. 3, 2015, pp. 817-826
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Bioline Code: st15073
Full paper language: English
Document type: Research Article
Document available free of charge
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International Journal of Environment Science and Technology, Vol. 12, No. 3, 2015, pp. 817-826
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Mercury pollution assessment in soils affected by industrial emissions using miniaturized ultrasonic probe extraction and ICP-MS
Bernalte, E.; Salmanighabeshi, S.; Rueda-Holgado, F.; Palomo-Marín, M. R.; Marín-Sànchez, C.; Cereceda-Balic, F. & Pinilla-Gil, E.
Abstract
A combination of probe ultrasonic extraction,
optimized by surface response methodology, and Inductively
coupled plasma mass spectrometry (ICP-MS)
detection is described in this work as an effective methodology
for mercury monitoring in soils affected by
industrial emissions. Minute amounts of samples (typically
20 mg) can be extracted in 3 min by 1 mL of HCl-based
extracting solution, without risk of mercury losses, and sub
sequentially assayed by ICP-MS. The method was successfully
tested on soil standard reference materials and
then applied to mercury monitoring in a large set of real
soil samples collected during a long-term monitoring survey
(2007–2011) around the industrial area of Puchuncavý,
Chile. The method proved to be useful for investigation of
spatial and temporal mercury variability in the area,
showing an intermediate to high mercury contamination
with potential impact on the surrounding ecosystem.
Keywords
Mercury; Soil; Ultrasonic extraction; Inductively coupled plasma mass spectrometry; Hierarchical cluster analysis; Contamination indexes
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