Chemical Characterization Laboratories
The Mineral Technology Service - SETEM has a wide laboratory infrastructure for chemical characterization. Serving institutional projects of the CDTN and external clients1, it stands out in carrying out tests on matrices of high analytical complexity: mineral processing products originating from research, development and improvement of hydrometallurgical processes and physical concentration of minerals.
Both classic wet techniques, such as gravimetry and volumetry, as well as electrochemical and spectroscopic instrumental techniques are used, with emphasis on Potentiometry, ICP-OES (Inductively Coupled Plasma Optical Emission Spectrometry), AA (Atomic Absorption Spectrometry), UV-Vis (Ultraviolet-Visible Spectrometry), EDXRF (Energy Dispersive X-ray Fluorescence), WDXRF (Wavelength Dispersive X-ray Fluorescence) and X-ray Diffraction.
To meet the chemical characterization of geological materials, materials resulting from mineral/hydrometallurgical processing, chemical/synthetic processing and biological material, SETEM has a Rigaku ZSX Primus II WDXRF spectrometer, offering superior performance in X-ray fluorescence determination, and for structural analysis, a Rigaku D/MAX Última X-ray Diffractometer.
Its laboratory units for chemical characterization are:
Chemical Analysis Laboratory.
It includes the Wet Process Laboratory, the Microwave Assisted Sample Digestion Laboratory and the Spectrometry II Laboratory (ICP-OES, benchtop WDXRF). The laboratory is also equipped with a thermogravimetric analyzer.
Contacts:
Raquel Maia Mingote - raquel.mingote@cdtn.br – Spectrometric Techniques: ICP-OES, WDXRF de bancada
Luiz Carlos da Silva - lcs@cdtn.br – Wet Process and Electrochemical Techniques
Spectrometry Laboratory I.
Main analytical techniques: AA, UV-Vis and EDXRF
Contact:
Luiz Carlos da Silva - lcs@cdtn.br
X-ray Fluorescence Laboratory
Contact:
Liliane Pacheco Tavares - lpt@cdtn.br
X-ray Diffraction Laboratory
Contact:
João Batista Santos Barbosa - jbsb@cdtn.br
1 We clarify that SETEM reserves the right not to accept demands for service provision that represent the practice of continued analytical assistance. On the contrary, the Center proposes to act with a focus on solving specific problems that have a recognized investigative and scientific appeal.