期刊
ENVIRONMENTAL CHEMISTRY
卷 4, 期 1, 页码 8-10出版社
CSIRO PUBLISHING
DOI: 10.1071/EN06072
关键词
environmental chemistry; field-flow fractionation; nanoparticles; soils
This paper reports preliminary results for the determination of engineered ZnO nanoparticles using flow field-flow fractionation (FlFFF). This separation technique was used to determine the particle size distributions (PSDs) of ZnO nanoparticles spiked in soil suspensions. Before FlFFF analysis, the soil was prepared in suspension form, shaken overnight and gravitationally settled to extract the < 1-mu m fraction. The effect of aging was also investigated using soil samples incubated with known concentrations of ZnO nanoparticles for 7 and 14 days. The results show that FlFFF can be used to determine the PSD of engineered nanoparticles and monitor their partitioning and stability in soil suspensions.
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