Rapid determination of iron oxide content in magnetically modified particulate materials |
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| Institution: | 1. Department of Nanobiotechnology, Institute of Nanobiology and Structural Biology of GCRC, Na Sadkach 7, 370 05 Ceske Budejovice, Czech Republic;2. Regional Centre of Advanced Technologies and Materials, Palacky University, Slechtitelu 27, 783 71 Olomouc, Czech Republic;3. Department of Nanobiotechnology, Biology Centre, CAS, Na Sadkach 7, 370 05 Ceske Budejovice, Czech Republic;4. Department of Applied Chemistry, Faculty of Agriculture, University of South Bohemia, Branisovska 1457, 370 05 Ceske Budejovice, Czech Republic;1. Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RAS, Novosibirsk 630090, Russia;2. Functional Electronics Laboratory, Tomsk State University, Tomsk 634050, Russia;3. Laboratory of Semiconductor and Dielectric Materials, Novosibirsk State University, Novosibirsk 630090, Russia;4. Laboratory of Crystal Chemistry, Institute of Inorganic Chemistry, SB RAS, Novosibirsk 630090, Russia;5. Laboratory of Nanodiagnostics and Nanolithography, Institute of Semiconductor Physics, SB RAS, Novosibirsk 630090, Russia;6. Laboratory of Crystal Growth, Institute of Geology and Mineralogy, SB RAS, Novosibirsk 630090, Russia;7. Geology and Mineralogy Department, Novosibirsk State University, Novosibirsk 630090, Russia;8. Spintronics Laboratory, Saint Petersburg State University, Saint Petersburg 198504, Russia;9. Laboratory of Research Methods of Composition and Structure of Functional Materials, Novosibirsk State University, Novosibirsk 630090, Russia;1. University of Freiburg, Freiburg Research Institute for Advances Studies (FRIAS), Faculty for Environment and Natural Resources, Chair of Bio-based Materials Engineering, Werthmannstrasse 6, D-79085 Freiburg, Germany;2. Ghent University, Department of Textiles, Technologiepark 907, B-9052 Zwijnaarde, Belgium;3. Topchim N.V., Nijverheidsstraat 98, B-2160 Wommelgem, Belgium;1. Department of Mechanical Engineering, Babol University of Technology, Babol, Islamic Republic of Iran;2. Department of Mathematics, Statistics and Physics, Qatar University, Doha 2713, Qatar;1. Department of Materials and Ceramic Engineering/CICECO – Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal;2. Physics Department/CICECO – Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal;1. State Key Laboratory for Geo-mechanics and Deep Underground Engineering, School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, China;2. Laboratory for Precision and Nano Processing Technologies, School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney 2052, Australia;3. Department of Safety Engineering, China Institute of Industrial Relations, Beijing 100048, China;1. Department of Psychiatry, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA;2. Institute for Behavioral Genetics, University of Colorado, Boulder, Boulder, CO, USA |
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| 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. |
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| Keywords: | Magnetic permeability meter Magnetic iron oxides Magnetically modified materials |
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