NDLI: Solid-phase extraction of trace metal ions with magnetic nanoparticles modified with 2,6-diaminopyridine

Content Provider	Springer Nature Link
Author	Zhai, Yunhui He, Qun Han, Quan Duan, Shu’e
Copyright Year	2012
Abstract	We have modified silica-coated Fe3O4 nanoparticles with 2,6-diaminopyridine and used these for selective magnetic solid-phase extraction of trace amounts of metal ions. The nanoparticles were characterized by transmission electron microscopy and Fourier transform infrared spectroscopy. Quantitative extraction of trace amounts of Cu(II) and Zn(II) from mixed-ion solutions was accomplished at an optimal pH value of 6 within less than 10 min. The metal ions were eluted from the sorbent with hydrochloric acid. Common electrolytes and chemically related metal ions do not interfere. The relative standard deviations of the method are <4 %. It was successfully applied to the separation and preconcentration of trace metal ions from the certified reference materials GBW 08301 (river sediment) and GBW 08607 (water solution), in natural water, and in samples of vegetable with satisfying results.
Starting Page	405
Ending Page	412
Page Count	8
File Format	PDF
ISSN	00263672
Journal	Microchimica Acta
Volume Number	178
Issue Number	3-4
e-ISSN	14365073
Language	English
Publisher	Springer Vienna
Publisher Date	2012-06-28
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Magnetic solid phase extraction Trace metal ions 2,6-Diminopyridine Nanoparticle Nanotechnology Nanochemistry Analytical Chemistry Characterization and Evaluation of Materials Microengineering
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry

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