High-gradient magnetic separation of microparticles on membrane separation unit

被引：3
|
作者：
Podoinitsyn, S. N. [1 ]
Sorokina, O. N. [1 ]
Kovarski, A. L. [1 ]
机构：
[1] Russian Acad Sci, Emanuel Inst Biochem Phys, Moscow, Russia
来源：
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B | 2016年 / 10卷 / 02期
基金：
俄罗斯基础研究基金会;
关键词：
high-gradient magnetic separation; ferromagnetic resonance; ferromagnetic membrane; FLOW; HGMS;
D O I：
10.1134/S199079311601019X
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
A simple design of a magnetic separator based on a membrane made of a laser-perforated ferromagnetic foil has been proposed. The separator is primarily intended for analytical and research purposes. The developed magnetic separator of the proposed design has been tested in the separation of a composite aqueous suspension of magnetite nanoparticles adsorbed on hydroxyapatite microparticles. Separation efficiency has been determined via measuring the magnetic moment by the ferromagnetic resonance method; the suspension particle size has been found by dynamic light scattering before and after the separation process. It has been shown that all the particles with a diameter of more than 500 nm are retained during separation; the magnetization of the fraction decreases twofold after passing through the membrane.
引用
收藏
页码：321 / 326
页数：6
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