2019-11-082019-11-082008-01-08https://repository.tcu.edu/handle/116099117/35784https://nanoscalereslett.springeropen.com/articles/10.1007/s11671-007-9115-zIt is shown that magnetometry can be employed as an effective tool to control the content of a ferromagnetic constituent in nanocarbon materials. We propose a thermochemical treatment protocol to achieve extensive cleaning of the source nanocarbon materials from ferromagnetic refuses.enhttps://creativecommons.org/licenses/by/2.0/Nanocarbon materialMagnetometryCarbon nanotubesCatalyst refuseMagnetic susceptibilityThermochemical treatmentArticleCC BY 2.0https://doi.org/10.1007/s11671-007-9115-z