Analysis of engineered nanomaterials (Ag, CeO2 and Fe2O3) in spiked surface waters at environmentally relevant particle concentrations

Analytical applications of single particle inductively coupled plasma mass spectrometry: a comprehensive and critical review

“…The main advantage of these controlled experiments is that both size and concentration of the spiked nanoparticles can be selected as desired. Although concentration is not a serious limitation for SP-ICP-MS, allowing even to work at realistic environmental concentrations, 135,138,141 attainable size LODs can be a critical drawback when using SP-ICP-MS with real samples, as it has been discussed above and it will be shown again in relation to scenario 3. Fate studies performed with spiked Ag nanoparticles in food simulants complement the migration tests of silver from food containers discussed above, allowing to obtain information about the oxidation of silver nanoparticles to dissolved forms.…”

“…This was done by using water or other extractants, like sodium pyrophosphate, 158,159,163 followed by centrifugation or/and filtration. Apart from works devoted to demonstrate the capability of SP-ICP-MS for detecting specific nanoparticles in water 142,150 and soil 159,161,163 samples, fate experiments focus mainly on studying the stability 129,143 and transformations (dissolution/ oxidation, 128,138 aggregation 127,135 ...) of nanoparticles under laboratory controlled conditions, although experiments adding nanoparticles into natural aquifers have also been performed. [131][132][133] Special attention has been paid to the fate of nanoparticles in relation to drinking and wastewater treatments.…”

“…Soil studies have focused on the interaction of the nanoparticles with soil components, that control their transformations as well as their retention and mobility. 157,162,164,165 Most studies with environmental samples have focused on Ag nanoparticles, 104,[121][122][123][124][125][126][129][130][131][132][133][134][135][137][138][139][140][141][142][143][146][147][148]150,[152][153][154][155][156][157][158][159][160]275,163,164,166 as well as their transformation products, Ag 2 S and AgCl. 134,140 Other nanoparticles studied include TiO 2 , 136,144,148,...…”

Occurrence and removal of engineered nanoparticles in drinking water treatment and wastewater treatment processes: A review

“…However, a recent study has shown that titanium concentrations in wastewater treatment plants are often higher than expected because titanium present in rocks and minerals is transported into groundwater and surface water via openings in sewer system and soil seepage because of weathering and corrosion [30]. Furthermore, in nature, TiO 2 is mixed with trace amounts of other elements; therefore, NP contamination caused by natural factors must be considered [31].…”

Optimization of hyphenated asymmetric flow field-flow fractionation for the analysis of silver nanoparticles in aqueous solutions

“…Kim and co-workers probed the efficiency of AF4 coupled with a liquid capillary cell for the size determination of natural AgNPs in groundwater [ 46 ]. Loosli et al used a AF4-ICP-MS system for the characterization of natural and engineered AgNPs extracted from river waters [ 47 , 48 ]. The characterization of AgNPs in river and lake waters by AF4 demonstrated the effect of natural organic matter on the stabilization of the nanoparticles [ 49 ].…”