Tracking dissolution of silver nanoparticles at environmentally relevant concentrations in laboratory, natural, and processed waters using single particle ICP-MS (spICP-MS)

The interplay between engineered nanoparticle (ENP) size, surface area, and dissolution rate is critical in predicting ENP environmental behavior. Single particle inductively coupled plasma mass spectrometry (spICP-MS) enables the study of ENPs at dilute (ng L super(-1)) concentrations, facilitating...

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Bibliographic Details
Published in:Environmental science. Nano 2014-06, Vol.1 (3), p.248-259
Main Authors: Mitrano, D M, Ranville, J F, Bednar, A, Kazor, K, Hering, A S, Higgins, C P
Format: Article
Language:English
Subjects:
Carbon
Chlorides
Dissolution
Mathematical models
Nanoparticles
Silver
Tap water
Water chemistry
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Summary:The interplay between engineered nanoparticle (ENP) size, surface area, and dissolution rate is critical in predicting ENP environmental behavior. Single particle inductively coupled plasma mass spectrometry (spICP-MS) enables the study of ENPs at dilute (ng L super(-1)) concentrations, facilitating the measurement of ENP behavior in natural systems. Here, the utility of using spICP-MS to quantitatively track the changes in particle diameter over time for 60 and 100 nm Ag ENPs (citrate, tannic acid, and polyvinylpyrrolidone coated) was demonstrated. Short term (
ISSN:2051-8153
2051-8161
DOI:10.1039/c3en00108c