Rapid determination of iron oxide content in magnetically modified particulate materials  

作　　者：Ivo Safarik Leona Nydlova Kristyna Pospiskova Eva Baldikova Zdenka Maderova Mirka Safarikova 

机构地区：[1]Department of Nanobiotechnology, Institute of Nanobiology and Structural Biology ofGCRC 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

出　　处：《Particuology》2016年第3期114-117,共4页颗粒学报（英文版）

摘　　要：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 partic- ulate 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.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 partic- ulate 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.

关 键 词：Magnetic permeability meter Magnetic iron oxides Magnetically modified materials 

分 类 号：TQ460.4[化学工程—制药化工] TB33[一般工业技术—材料科学与工程]