Use of the Relaxometry Technique for Quantification of Paramagnetic Ions in Aqueous Solutions and a Comparison with Other Analytical Methods
Joint Authors
Colnago, Luiz Alberto
Gomes, Bruna Ferreira
Burato, Juliana Soares da Silva
Silva Lobo, Carlos Manuel
Source
International Journal of Analytical Chemistry
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-05-17
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
We have demonstrated that the relaxometry technique is very efficient to quantify paramagnetic ions during in situ electrolysis measurements.
Therefore, the goal of this work was to validate the relaxometry technique in the determination of the concentration of the ions contained in electrolytic solutions, Cu2+, Ni2+, Cr3+, and Mn2+, and compare it with other analytical methods.
Two different NMR spectrometers were used: a commercial spectrometer with a homogeneous magnetic field and a home-built unilateral sensor with an inhomogeneous magnetic field.
Without pretreatment, manganese ions do not have absorption bands in the UV-Visible region, but it is possible to quantify them using relaxometry (the limit of quantification is close to 10−5 mol L−1).
Therefore, since the technique does not require chemical indicators and is a cheap and robust method, it can be used as a replacement for some conventional quantification techniques.
The relaxometry technique could be applied to evaluate the corrosion of metallic surfaces.
American Psychological Association (APA)
Gomes, Bruna Ferreira& Burato, Juliana Soares da Silva& Silva Lobo, Carlos Manuel& Colnago, Luiz Alberto. 2016. Use of the Relaxometry Technique for Quantification of Paramagnetic Ions in Aqueous Solutions and a Comparison with Other Analytical Methods. International Journal of Analytical Chemistry،Vol. 2016, no. 2016, pp.1-5.
https://search.emarefa.net/detail/BIM-1104953
Modern Language Association (MLA)
Gomes, Bruna Ferreira…[et al.]. Use of the Relaxometry Technique for Quantification of Paramagnetic Ions in Aqueous Solutions and a Comparison with Other Analytical Methods. International Journal of Analytical Chemistry No. 2016 (2016), pp.1-5.
https://search.emarefa.net/detail/BIM-1104953
American Medical Association (AMA)
Gomes, Bruna Ferreira& Burato, Juliana Soares da Silva& Silva Lobo, Carlos Manuel& Colnago, Luiz Alberto. Use of the Relaxometry Technique for Quantification of Paramagnetic Ions in Aqueous Solutions and a Comparison with Other Analytical Methods. International Journal of Analytical Chemistry. 2016. Vol. 2016, no. 2016, pp.1-5.
https://search.emarefa.net/detail/BIM-1104953
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1104953