Automatized and desktop AC-susceptometer for the in situ and real time monitoring of magnetic nanoparticles' synthesis by coprecipitation

Thumbnail Image
Date
2015
Authors
Fernandez Garcia,MP
Teixeira,JM
Machado,P
Mariana Rafaela Oliveira
João Miguel Maia
Pereira,C
Pereira,AM
Freire,C
Araujo,JP
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
The main purpose of this work was to design, develop, and construct a simple desktop AC susceptometer to monitor in situ and in real time the coprecipitation synthesis of magnetic nanoparticles. The design incorporates one pair of identical pick-up sensing coils and one pair of Helmholtz coils. The picked up signal is detected by a lock-in SR850 amplifier that measures the in-and out-of-phase signals. The apparatus also includes a stirrer with 45 degrees-angle blades to promote the fast homogenization of the reaction mixture. Our susceptometer has been successfully used to monitor the coprecipitation reaction for the synthesis of iron oxide nanoparticles. (C) 2015 AIP Publishing LLC.
Description
Keywords
Citation