Optimization of dispersive liquid-liquid microextraction for polyethylene glycol-coated gold and silver nanoparticles

Torregrosa Daniel; Grindlay Guillermo; Ungor Ditta; Csapó Edit; Galbács Gábor: Optimization of dispersive liquid-liquid microextraction for polyethylene glycol-coated gold and silver nanoparticles.

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Absztrakt (kivonat)

The use of polyethylene glycol modified nanoparticles is becoming an interesting topic since they present a very good stability in biological media. However, the effects of these nanoparticles on organisms are still unclear, so it is necessary to monitor their presence in bodily fluids, such as plasma or urine. Single-particle ICP-MS is a versatile tool to simultaneously detect and characterize nanoparticles in aqueous media, but a previous extraction step is necessary when analyzing complex samples due to the occurrence of matrix effects. In this work, an ultrasound assisted dispersive liquid-liquid microextraction method based on the use of chloroform as extracting solvent has been optimized for the extraction, characterization, and quantification of polyethylene glycol modified gold and silver nanoparticles in aqueous media. So far, we could achieve extraction efficiencies higher than 75% for both types of nanoparticles studied. We believe that with further optimization, the extraction can be made quantitative.

Mű típusa:	Konferencia vagy workshop anyag
Befoglaló folyóirat/kiadvány címe:	Proceedings of the International Symposium on Analytical and Environmental Problems
Dátum:	2021
Kötet:	27
ISBN:	978-963-306-835-9
Oldalak:	pp. 343-347
Nyelv:	angol
Kiadó:	University of Szeged
Kiadás helye:	Szeged
Konferencia neve:	International Symposium on Analytical and Environmental Problems (27.) (2021) (Szeged)
Befoglaló mű URL:	http://acta.bibl.u-szeged.hu/75798/
Kulcsszavak:	Analitikai kémia
Megjegyzések:	Bibliogr.: 347. p. ; ill. ; összefoglalás angol nyelven
Szakterület:	01. Természettudományok 01. Természettudományok > 01.04. Kémiai tudományok
Feltöltés dátuma:	2022. jún. 01. 10:36
Utolsó módosítás:	2022. aug. 08. 15:40
URI:	http://acta.bibl.u-szeged.hu/id/eprint/76002

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