Material Identification of Single-Organic Particles Realized by Observing Their Field-Induced Translations

Autor: H. Fukuyama, Keiji Hisayoshi, Wakana Yamaguchi, Chiaki Uyeda
Rok vydání: 2019
Předmět:
Zdroj: IEEE Transactions on Magnetics. 55:1-4
ISSN: 1941-0069
0018-9464
DOI: 10.1109/tmag.2018.2865113
Popis: A method is proposed that can efficiently identify the material of a single-organic particle; the identification is realized by improving an apparatus formerly used to observe the field-induced translations of particles. Using this new setup, the material of an unidentified organic particle can be determined without consuming the sample. Specifically, the diamagnetic susceptibility χ DIA of the particle was obtained from its translating velocity induced in a field-gradient produced by an Nd magnetic circuit, and its material was identified by comparing the experimental χ DIA value with a list of published values. In principle, the proposed method of identification based on the χ DIA value is effective even for micrometersized particles because the mass measurement of the sample is unnecessary. Hence, the method can be used to thoroughly extract and identify a rare material from a mixture of heterogeneous particles without consuming the sample, before performing a refined analysis.
Databáze: OpenAIRE