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@article{2227362,
author = {Hagarova, Ingrid and Nemcek, Lucia and Sebesta, Martin and Zvěřina, Ondřej and Kasak, Peter and Urik, Martin},
article_location = {Basel},
article_number = {19},
doi = {http://dx.doi.org/10.3390/ijms231911465},
keywords = {gold nanoparticles; separation; quantification; extraction techniques; spectrometric methods; environmental waters},
language = {eng},
issn = {1422-0067},
journal = {International Journal of Molecular Sciences},
title = {Preconcentration and Separation of Gold Nanoparticles from Environmental Waters Using Extraction Techniques Followed by Spectrometric Quantification},
url = {https://www.mdpi.com/1422-0067/23/19/11465/htm},
volume = {23},
year = {2022}
}
TY - JOUR
ID - 2227362
AU - Hagarova, Ingrid - Nemcek, Lucia - Sebesta, Martin - Zvěřina, Ondřej - Kasak, Peter - Urik, Martin
PY - 2022
TI - Preconcentration and Separation of Gold Nanoparticles from Environmental Waters Using Extraction Techniques Followed by Spectrometric Quantification
JF - International Journal of Molecular Sciences
VL - 23
IS - 19
SP - 1-17
EP - 1-17
PB - Multidisciplinary Digital Publishing Institute
SN - 14220067
KW - gold nanoparticles
KW - separation
KW - quantification
KW - extraction techniques
KW - spectrometric methods
KW - environmental waters
UR - https://www.mdpi.com/1422-0067/23/19/11465/htm
N2 - The quantification of gold nanoparticles (AuNP) in environmental samples at ultratrace concentrations can be accurately performed by sophisticated and pricey analytical methods. This paper aims to challenge the analytical potential and advantages of cheaper and equally reliable alternatives that couple the well-established extraction procedures with common spectrometric methods. We discuss several combinations of techniques that are suitable for separation/preconcentration and quantification of AuNP in complex and challenging aqueous matrices, such as tap, river, lake, brook, mineral, and sea waters, as well as wastewaters. Cloud point extraction (CPE) has been successfully combined with electrothermal atomic absorption spectrometry (ETAAS), inductively coupled plasma mass spectrometry (ICP-MS), chemiluminescence (CL), and total reflection X-ray fluorescence spectrometry (TXRF). The major advantage of this approach is the ability to quantify AuNP of different sizes and coatings in a sample with a volume in the order of milliliters. Small volumes of sample (5 mL), dispersive solvent (50 mu L), and extraction agent (70 mu L) were reported also for surfactant-assisted dispersive liquid-liquid microextraction (SA-DLLME) coupled with electrothermal vaporization inductively coupled plasma mass spectrometry (ETV-ICP-MS). The limits of detection (LOD) achieved using different combinations of methods as well as enrichment factors (EF) varied greatly, being 0.004-200 ng L-1 and 8-250, respectively.
ER -
HAGAROVA, Ingrid, Lucia NEMCEK, Martin SEBESTA, Ondřej ZVĚŘINA, Peter KASAK and Martin URIK. Preconcentration and Separation of Gold Nanoparticles from Environmental Waters Using Extraction Techniques Followed by Spectrometric Quantification. \textit{International Journal of Molecular Sciences}. Basel: Multidisciplinary Digital Publishing Institute, 2022, vol.~23, No~19, p.~1-17. ISSN~1422-0067. Available from: https://dx.doi.org/10.3390/ijms231911465.
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