Naslov
Laser ablation ICP-MS quantitative analysis of selected lanthanides adsorbed onto zero-valent iron nanoparticles

Autori
Krajina, Natko ; Nemet, Ivan ; Rončević, Sanda

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of abstracts of the 19th European Winter Conference on Plasma Spectrochemistry / Šelih, Vid Simon ; Šala, Martin - Ljubljana : National Institute of Chemistry Ljubljana, 2023, 262-262

ISBN
978-961-6104-85-2

Skup
European Winter Conference on Plasma Spectrochemistry

Mjesto i datum
Ljubljana, Slovenija, 29.01.2023. - 03.02.2023

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
iron nanoparticles, lanthanides, LA-ICP-MS, quantitative analysis

Sažetak
Nanosized zero-valent iron (nZVI) has become one of the most important engineered nanomaterials and has been an object of numerous studies for their potential application as an environmental remediation agent.1 One of the pollutants that have gained large importance in recent years are lanthanides due to their application in many modern materials and systems (e.g., electronics, optics, catalysts).2 Therefore, a method for their recovery from environment, as well as analytical method to assess its efficiency, is needed. However, due to their chemical and physical similarities, as well as the fact that they usually occur in mixtures with other lanthanides, make their determination rather difficult and complicated. Quantitative analysis of lanthanides was done in the past by atomic absorption and atomic emission spectrometry, however numerous coincidences and interferences in their optical spectra would render application of these methods for lanthanide determination very difficult and time consuming. Currently all forms of inductively coupled plasma mass spectrometry (ICP-MS) have been employed in determination of lanthanides in various samples due to its great sensitivity, high precision and accuracy, wide linear dynamic range and limited interferences. ICP-MS has mainly been applied to aqueous samples, while solid samples traditionally require often tedious sample dissolution procedure during which original sample is destroyed and may become contaminated due to addition of dissolving reagents. Laser ablation (LA) as a sample introduction method for ICP-MS allows for direct analysis of solid samples, with no or minimal sample preparation procedure and is virtually non- destructive. In addition, laser ablationinductively coupled plasma-mass spectrometry (LA-ICP-MS) can be utilized for sample microanalysis, elemental mapping and depth profiling, expanding the analytical applications of ICP-MS. The aim of this work is to assess applicability of LA-ICP-MS to quantitative analysis of selected lanthanides in iron-rich matrix (i.e., nZVI particles). Particles are synthesized by reduction of iron(III) salt by sodium tetrahydroborate in aqueous solution and used for sorption of lanthanides from pH-adjusted standard solution. After that nZVI are deposited onto a surface of silica-coated glass plate and their composition determined by LA-ICP-MS. As a quality check, the lanthanide solution after sorption is analyzed by ICP-MS with solution nebulization as a means of sample introduction.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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