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Review

The Use of Ferrofluids in Analytical Sample Preparation: A Review

1
Departamento de Química, Unidad Departamental de Química Analítica, Universidad de La Laguna (ULL), La Laguna, 38206 Tenerife, Spain
2
Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna (ULL), La Laguna, 38206 Tenerife, Spain
*
Author to whom correspondence should be addressed.
Academic Editors: Alberto Chisvert, Juan L. Benedé and Dimosthenis Giokas
Separations 2021, 8(4), 47; https://doi.org/10.3390/separations8040047
Received: 8 March 2021 / Revised: 6 April 2021 / Accepted: 6 April 2021 / Published: 9 April 2021
(This article belongs to the Special Issue Development of Analytical Methods Based on Microextraction Techniques)
Ferrofluids (FFs) constitute a type of tunable magnetic material, formed by magnetic nanoparticles suspended in a liquid carrier. The astonishing magnetic properties of these materials and their liquid nature have led to their extended use in different applications, including fields such as magnetochemistry, optics, and biomedicine, among others. Recently, FFs have been incorporated as extractant materials in magnetic-driven analytical sample preparation procedures, thus, permitting the development of different applications. FF-based extraction takes advantage of both the magnetic susceptibility of the nanoparticles and the properties of the liquid carrier, which are responsible for a wide variety of interactions with analytes and ultimately are a key factor in achieving better extraction performance. This review article classifies existing FFs in terms of the solvent used as a carrier (organic solvents, water, ionic liquids, deep eutectic solvents, and supramolecular solvents) while overviewing the most relevant analytical applications in the last decade. View Full-Text
Keywords: ferrofluids; extraction; sample preparation; analytical chemistry; liquid–liquid extraction; magnetic extraction ferrofluids; extraction; sample preparation; analytical chemistry; liquid–liquid extraction; magnetic extraction
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MDPI and ACS Style

González-Martín, R.; Gutiérrez-Serpa, A.; Pino, V. The Use of Ferrofluids in Analytical Sample Preparation: A Review. Separations 2021, 8, 47. https://doi.org/10.3390/separations8040047

AMA Style

González-Martín R, Gutiérrez-Serpa A, Pino V. The Use of Ferrofluids in Analytical Sample Preparation: A Review. Separations. 2021; 8(4):47. https://doi.org/10.3390/separations8040047

Chicago/Turabian Style

González-Martín, Raúl, Adrián Gutiérrez-Serpa, and Verónica Pino. 2021. "The Use of Ferrofluids in Analytical Sample Preparation: A Review" Separations 8, no. 4: 47. https://doi.org/10.3390/separations8040047

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