NDLI: Deep eutectic solvent-mediated extraction for ligand-less preconcentration of lead and cadmium from environmental samples using magnetic nanoparticles

Content Provider	Springer Nature Link
Author	Karimi, Mehdi Shabani, Ali Mohammad Haji Dadfarnia, Shayessteh
Copyright Year	2015
Abstract	A simple, rapid and eco-friendly deep eutectic solvent-modified magnetic nanoparticles extraction method has been reported for ligand-less separation/preconcentration of lead(II) and cadmium(II) for the first time. The metal ions interact with the deep eutectic solvent adhering to the magnetic nanoparticles. Trapped analytes can be easily desorbed with 1.0 M nitric acid and determined by flame atomic absorption spectrometry. The effects of pH value, type of deep eutectic solvent, sample volume, nature and concentration of desorbing solution, ionic strength and extraction time on the extraction were optimized. Under the optimized experimental conditions, the detection limits (defined as 3Sb/m) were 0.4 and 0.1 μg L−1 and the linear dynamic ranges were 2 to 250 μg L−1 and 0.5 to 30 μg L−1 for lead and cadmium, respectively. The relative standard deviations for six replicate measurements at 150 and 20 μg L−1 levels of lead and cadmium were 1.8 and 2.1 %, respectively. A sample volume of 60 mL resulted in a preconcentration factor of 100. The sorbent showed high capacity for lead (25.0 mg g−1) and cadmium (23.7 mg g−1). The method was successfully applied to the determination of lead and cadmium in soil, hair and several water samples. Graphical Abstract Deep eutectic solvent (DES) and Fe3O4 nanoparticles were added to the sample solution, and the DES containing the target ions was trapped on the sorbent and separated by means of a strong magnet. The analytes were desorbed by nitric acid, and the extracted metal ions were then directly submitted to FAAS for quantification
Starting Page	563
Ending Page	571
Page Count	9
File Format	PDF
ISSN	00263672
Journal	Microchimica Acta
Volume Number	183
Issue Number	2
e-ISSN	14365073
Language	English
Publisher	Springer Vienna
Publisher Date	2015-11-11
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Solid phase extraction Flame atomic absorption spectrometry FTIR Ionic liquid Sea water analysis Nanochemistry Nanotechnology Characterization and Evaluation of Materials Analytical Chemistry Microengineering
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry

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