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Identification of p...
Identification of platinum nanoparticles in road dust leachate by single particle inductively coupled plasma-mass spectrometry
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- Folens, K. (författare)
- Universiteit Gent,Ghent university
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- Van Acker, T. (författare)
- Universiteit Gent,Ghent university
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- Bolea-Fernandez, E. (författare)
- Universiteit Gent,Ghent university
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- Cornelis, Geert (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för mark och miljö,Department of Soil and Environment
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- Vanhaecke, F. (författare)
- Universiteit Gent,Ghent university
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- Du Laing, G. (författare)
- Universiteit Gent,Ghent university
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- Rauch, Sebastien, 1971 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
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- Elsevier BV, 2018
- 2018
- Engelska.
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Ingår i: Science of the Total Environment. - : Elsevier BV. - 0048-9697 .- 1879-1026. ; 615, s. 849-856
- Relaterad länk:
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https://doi.org/10.1...
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https://research.cha...
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https://res.slu.se/i...
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Abstract
Ämnesord
Stäng
- Elevated platinum (Pt) concentrations are found in road dust as a result of emissions from catalytic converters in vehicles. This study investigates the occurrence of Pt in road dust collected in Ghent (Belgium) and Gothenburg (Sweden). Total Pt contents, determined by tandem ICP-mass spectrometry (ICP-MS/MS), were in the range of 5 to 79 ng g − 1 , comparable to the Pt content in road dust of other medium-sized cities. Further sample characterization was performed by single particle (sp) ICP-MS following an ultrasonic extraction procedure using stormwater runoff for leaching. The method was found to be suitable for the characterization of Pt nanoparticles in road dust leachates. The extraction was optimized using road dust reference material BCR-723, for which an extraction efficiency of 2.7% was obtained by applying 144 kJ of ultrasonic energy. Using this method, between 0.2% and 18% of the Pt present was extracted from road dust samples. spICP-MS analysis revealed that Pt in the leachate is entirely present as nanoparticles of sizes between 9 and 21 nm. Although representing only a minor fraction of the total content in road dust, the nanoparticulate Pt leachate is most susceptible to biological uptake and hence most relevant in terms of bioavailability.
Ämnesord
- NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
Nyckelord
- Platinum
- Nanoparticles
- ICP-MS/MS
- Single particle ICP-MS
- Road dust
- Catalytic converters
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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