Assessment of the usefulness of libs and ICP-MS for the characterization of nanoparticles in industrial and environmental samples
The need for analytical techniques capable for the detection and characterization of nanoparticles (NPs) in industrial and environmental matrices also grows along with the quickly expanding use of NPs in various products. Two candidate analytical techniques are laser induced breakdown spectroscopy (...
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| Dokumentumtípus: | Könyv része |
| Megjelent: |
2019
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| Sorozat: | Proceedings of the International Symposium on Analytical and Environmental Problems
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| Kulcsszavak: | Analitikai kémia |
| Online Access: | http://acta.bibl.u-szeged.hu/64856 |
| Tartalmi kivonat: | The need for analytical techniques capable for the detection and characterization of nanoparticles (NPs) in industrial and environmental matrices also grows along with the quickly expanding use of NPs in various products. Two candidate analytical techniques are laser induced breakdown spectroscopy (LIBS) and inductively coupled plasma mass spectrometry (ICP-MS). Both of these sensitive and versatile techniques provide elemental compositional information. Based on the success of the application of LIBS in aerosol analysis this technique can be expected to be similarly useful in NP monitoring applications, such as the detection of NPs in liquid or gaseous matrices, or for the monitoring of the properties of NPs produced by physical generation methods (e.g. electrical discharges or laser ablation). ICP-MS on the other hand has already proven itself useful in the literature, both in the solution or single particle analysis (spICP-MS) modes, for the characterization of nanoparticles. In recent years we also reported about the successful development of several ICP-MS based analytical methods for the compositional and dimensional analysis of NPs (e.g. [1, 2]). In our study we assessed the potential of LIBS and ICP-MS for nanoparticle detection and characterization both in on-line (only for LIBS) or off-line (following collection on a filter) mode. Dispersions of various types of nanoparticles (e.g. monometallic, bimetallic, oxide) in simulated or real liquid and gaseous industrial and environmental matrices were measured. Some NPs were obtained commercially, while others were generated by inlaboratory developed electrical (spark or arc) discharge generators. Additional and reference characterization of the nanoparticles were performed by electron microscopy (SEM, TEM) and scanning mobility particle sizer (SMPS). Size and mass detection limits were also calculated for on-line LIBS detection of nanoaerosols and for spICP-MS detection of NPs in aqueous nanodispersions. |
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| Terjedelem/Fizikai jellemzők: | 281-283 |
| ISBN: | 978-963-306-702-4 |