Study of the uptake and bioaccumulation of palladium nanoparticles by Sinapis alba using single particle ICP-MS

The Science of the Total Environment
Katarzyna KińskaJoanna Szpunar

Abstract

In recent years, increased palladium content has been found in the environment, due to its wide use in various fields, especially as catalytic converters. Palladium can be emitted as a range of soluble and insoluble compounds and in the form of palladium nanoparticles (PdNPs). The level of toxicity is equally dependent on concentration and form of palladium and hence, it is important to determine not only the total content of this element, but also its forms of occurrence. This study for the first time investigates the uptake degree and distribution of PdNPs by model plant Sinapis alba, in comparison with a platinum salt (Pd(NO3)2). An enzymatic digestion method which allows the extraction of PdNPs from the different plant tissues without altering their properties was applied. After extraction, samples were analysed by single particle inductively coupled plasma mass spectrometry (SP-ICP-MS) to provide information about the presences of palladium in nanoparticulated or dissolved form, the nanoparticle size and the nanoparticle number concentration. Significant amounts of PdNPs were found even in aboveground organs, but no significant changes in plant morphology were observed. Size distributions of PdNPs found in all tissues pres...Continue Reading

Citations

Jan 10, 2019·Journal of the Science of Food and Agriculture·Jing-Hua TzengYao-Tung Lin
May 28, 2019·The Science of the Total Environment·Justyna WojcieszekJoanna Szpunar
Jun 24, 2021·Analytical Methods : Advancing Methods and Applications·Eduardo BoleaFrancisco Laborda

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