authors |
Amorim, CO; Goncalves, JN; Tavares, DS; Fenta, AS; Lopes, CB; Pereira, E; Trindade, T; Correia, JG; Amaral, VS |
nationality |
International |
journal |
MICROCHEMICAL JOURNAL |
keywords |
LOW-COST ADSORBENTS; MERCURY-VAPOR; HEAVY-METALS; IN-VIVO; REMOVAL; WATER; PARTICLES; IONS; ABSORPTION; SORBENTS |
abstract |
We present an ultra sensitive method to quantify the uptake of Hg by dithiocarbamate functionalized magnetic nanoparticles using radioactive tracker spectroscopy. We show a lower limit of detection of about 10 fg L-1, much lower than any other known techniques used to determine the uptake of Hg (about 10(4) more sensitive), without the need of digesting or processing the sorption agent. Such high sensitivity enables the characterization of Functionalized Nanoparticles as Hg sorbents in natural waters, where the low Hg concentration is very difficult to detect using current analytical methods such as absorption/fluorometry methods (namely Cold Vapour Atomic Absorption/fluorescence spectroscopy). Radioactive trackers also give the ability to track the sorbed element, allowing the reconstruction of the path made by the sorbed element during the uptake process, unveiling further information about the impact of toxic metals in the environment and living beings. (C) 2018 Elsevier B.V. All rights reserved. |
publisher |
ELSEVIER SCIENCE BV |
issn |
0026-265X |
year published |
2018 |
volume |
138 |
beginning page |
418 |
ending page |
423 |
digital object identifier (doi) |
10.1016/j.microc.2018.01.039 |
web of science category |
Chemistry, Analytical |
subject category |
Chemistry |
unique article identifier |
WOS:000428103000049
|
ciceco authors
impact metrics
journal analysis (jcr 2019):
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journal impact factor |
3.594 |
5 year journal impact factor |
3.273 |
category normalized journal impact factor percentile |
78.488 |
dimensions (citation analysis):
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altmetrics (social interaction):
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