Rapid determination of iron oxide content in magnetically modified particulate materials--颗粒学报PARTICUOLOGY

Safarik, I., Nydlova, L., Pospiskova, K., Baldikova, E., Maderova, Z., & Safarikova, M. (2016). Rapid determination of iron oxide content in magnetically modified particulate materials. Particuology, 26, 114-117. https://doi.org/10.1016/j.partic.2015.11.001

Rapid determination of iron oxide content in magnetically modified particulate materials

Ivo Safarik ^{a b c *}, Leona Nydlova ^a, Kristyna Pospiskova ^b, Eva Baldikova ^{a d}, Zdenka Maderova ^a, Mirka Safarikova ^{a c}

a Department of Nanobiotechnology, Institute of Nanobiology and Structural Biology of GCRC, Na Sadkach 7, 370 05 Ceske Budejovice, Czech Republic
b Regional Centre of Advanced Technologies and Materials, Palacky University, Slechtitelu 27, 783 71 Olomouc, Czech Republic
c Department of Nanobiotechnology, Biology Centre, CAS, Na Sadkach 7, 370 05 Ceske Budejovice, Czech Republic
d Department of Applied Chemistry, Faculty of Agriculture, University of South Bohemia, Branisovska 1457, 370 05 Ceske Budejovice, Czech Republic

10.1016/j.partic.2015.11.001

Volume 26, June 2016, Pages 114-117

Received 6 October 2015, Revised 9 November 2015, Accepted 18 November 2015, Available online 18 January 2016, Version of Record 18 April 2016.

E-mail: ivosaf@yahoo.com

Highlights

• Large amounts of magnetically modified materials were prepared.

• Simple procedure to determine iron oxide content was developed.

• Measurements were performed using commercially available magnetic permeability meter.

• Up to 20% of magnetic iron oxides attached to the modified material could be measured.

• Highly reproducible results were obtained.

Abstract

Magnetically responsive composite materials have been used in interesting applications in various areas of bioscience, biotechnology, and environmental technology. In this work, a simple method to determine the amount of magnetic iron oxide nano- and microparticles attached to magnetically-modified particulate diamagnetic materials has been developed using a commercially available magnetic permeability meter. The procedure is fast and enables dry particulate magnetically modified materials to be analysed without any modification or pretreatment. We show that the magnetic permeability can be measured for materials containing up to 20% magnetic iron oxide. The magnetic permeability measurements are highly reproducible.

Graphical abstract

Keywords

Magnetic permeability meter; Magnetic iron oxides; Magnetically modified materials

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