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Ionic-liquid-based microextraction method for the determination of silver nanoparticles in consumer products.
Anal Bioanal Chem. 2019 Aug; 411(20):5023-5031.AB

Abstract

A simple method to determine hazardous silver nanoparticles (AgNPs) based on ionic liquid (IL) dispersive liquid-liquid microextraction and back-extraction is described. This approach involves AgNP stabilization using a cationic surfactant followed by extraction from the sample matrix by means of an IL as an extraction phase. Certain ILs have high affinity for metals, and preliminary experiments showed that those ILs consisting of imidazolium cation efficiently extracted AgNPs in the presence of a cationic surfactant and a chelating agent. Afterward, histamine was used as a dispersing agent to promote phase transfer of differently coated AgNPs from the IL in aqueous solution to be subsequently analyzed by UV-visible spectrometry. The analytical procedure allows AgNPs to be recovered from the sample matrix in an aqueous medium, the enrichment factor being up to 4, preserving both AgNP size and AgNP shape as demonstrated by transmission electron microscopy images and the localized surface plasmon resonance band characteristic of each AgNP. The present method exhibited a linear response for AgNPs in the range from 3 to 20 μg/mL, the limit of detection being 0.15 μg/mL. Method efficiency was assessed in spiked orange juice and face cream, yielding recoveries ranging from 75.7% to 96.6%. The method was evaluated in the presence of other nanointerferents (namely, gold nanoparticles). On the basis of diverse electrophoretic mobilities and surface plasmon resonance bands for metal nanoparticles, capillary electrophoresis was used to prove the lack of interaction of the target AgNPs with gold nanoparticles during the whole protocol; thus, interferents do not affect AgNP determination. As a consequence, the analytical approach described has great potential for the analysis of engineered nanosilver in consumer products. Graphical abstract Simple protocol for the determination of silver nanoparticles (AgNPs) based on dispersive liquid-liquid extraction with a specific short alkyl side chain ionic liquid and their quantitative detection with a UV-visible spectrometer. HMIM•PF6 1-hexyl-3-methylimidazolium hexafluorophosphate, NP nanoparticle, SPR surface plasmon resonance.

Authors+Show Affiliations

Regional Institute for Applied Chemistry Research, 13004, Ciudad Real, Spain. laura.soriano@uclm.es. Department of Analytical Chemistry and Food Technology, University of Castilla-La Mancha, 13071, Ciudad Real, Spain. laura.soriano@uclm.es. Department of Analytical Chemistry and Food Technology, Faculty of Pharmacy, University of Castilla-La Mancha, 02071, Albacete, Spain. laura.soriano@uclm.es.Department of Analytical Chemistry, Institute of Fine Chemistry and Nanochemistry, University of Córdoba, Maria Curie Annex Building, Campus Rabanales, 14071, Córdoba, Spain.Department of Analytical Chemistry, Institute of Fine Chemistry and Nanochemistry, University of Córdoba, Maria Curie Annex Building, Campus Rabanales, 14071, Córdoba, Spain. Spanish Royal Academy of Sciences, Valverde 24, 28071, Madrid, Spain.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31177332

Citation

Soriano, M Laura, et al. "Ionic-liquid-based Microextraction Method for the Determination of Silver Nanoparticles in Consumer Products." Analytical and Bioanalytical Chemistry, vol. 411, no. 20, 2019, pp. 5023-5031.
Soriano ML, Ruiz-Palomero C, Valcárcel M. Ionic-liquid-based microextraction method for the determination of silver nanoparticles in consumer products. Anal Bioanal Chem. 2019;411(20):5023-5031.
Soriano, M. L., Ruiz-Palomero, C., & Valcárcel, M. (2019). Ionic-liquid-based microextraction method for the determination of silver nanoparticles in consumer products. Analytical and Bioanalytical Chemistry, 411(20), 5023-5031. https://doi.org/10.1007/s00216-019-01889-w
Soriano ML, Ruiz-Palomero C, Valcárcel M. Ionic-liquid-based Microextraction Method for the Determination of Silver Nanoparticles in Consumer Products. Anal Bioanal Chem. 2019;411(20):5023-5031. PubMed PMID: 31177332.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Ionic-liquid-based microextraction method for the determination of silver nanoparticles in consumer products. AU - Soriano,M Laura, AU - Ruiz-Palomero,Celia, AU - Valcárcel,Miguel, Y1 - 2019/06/08/ PY - 2018/12/18/received PY - 2019/04/30/accepted PY - 2019/04/07/revised PY - 2019/6/10/pubmed PY - 2019/7/31/medline PY - 2019/6/10/entrez KW - Extraction KW - Histamine KW - Imidazolium cation KW - Ionic liquid KW - Silver nanoparticles KW - Surface plasmon resonance SP - 5023 EP - 5031 JF - Analytical and bioanalytical chemistry JO - Anal Bioanal Chem VL - 411 IS - 20 N2 - A simple method to determine hazardous silver nanoparticles (AgNPs) based on ionic liquid (IL) dispersive liquid-liquid microextraction and back-extraction is described. This approach involves AgNP stabilization using a cationic surfactant followed by extraction from the sample matrix by means of an IL as an extraction phase. Certain ILs have high affinity for metals, and preliminary experiments showed that those ILs consisting of imidazolium cation efficiently extracted AgNPs in the presence of a cationic surfactant and a chelating agent. Afterward, histamine was used as a dispersing agent to promote phase transfer of differently coated AgNPs from the IL in aqueous solution to be subsequently analyzed by UV-visible spectrometry. The analytical procedure allows AgNPs to be recovered from the sample matrix in an aqueous medium, the enrichment factor being up to 4, preserving both AgNP size and AgNP shape as demonstrated by transmission electron microscopy images and the localized surface plasmon resonance band characteristic of each AgNP. The present method exhibited a linear response for AgNPs in the range from 3 to 20 μg/mL, the limit of detection being 0.15 μg/mL. Method efficiency was assessed in spiked orange juice and face cream, yielding recoveries ranging from 75.7% to 96.6%. The method was evaluated in the presence of other nanointerferents (namely, gold nanoparticles). On the basis of diverse electrophoretic mobilities and surface plasmon resonance bands for metal nanoparticles, capillary electrophoresis was used to prove the lack of interaction of the target AgNPs with gold nanoparticles during the whole protocol; thus, interferents do not affect AgNP determination. As a consequence, the analytical approach described has great potential for the analysis of engineered nanosilver in consumer products. Graphical abstract Simple protocol for the determination of silver nanoparticles (AgNPs) based on dispersive liquid-liquid extraction with a specific short alkyl side chain ionic liquid and their quantitative detection with a UV-visible spectrometer. HMIM•PF6 1-hexyl-3-methylimidazolium hexafluorophosphate, NP nanoparticle, SPR surface plasmon resonance. SN - 1618-2650 UR - https://www.unboundmedicine.com/medline/citation/31177332/Ionic_liquid_based_microextraction_method_for_the_determination_of_silver_nanoparticles_in_consumer_products_ L2 - https://dx.doi.org/10.1007/s00216-019-01889-w DB - PRIME DP - Unbound Medicine ER -