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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:10 |
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Conference: Bucharest University Faculty of Physics 2013 Meeting
Section: Polymer Physics
Title:
Chemical characterization using the Fourier transform infrared(FT-IR) technique
Authors:
V. Marascu(1,3), I. Chitescu(1), E.S. Barna(2), B. Mitu(3), G. Dinescu(3)
Affiliation:
(1) University of Bucharest, Faculty of Mathematics and Computer Science, 14 Academiei Street, 010014 Bucharest, Romania
(2) University of Bucharest, Faculty of Physics, 405 Atomistilor, 077125 Bucharest- Magurele, Romania
(3) National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Bucharest– Magurele, Romania
E-mail
valentina.marascu@gmail.com
Keywords:
FT-IR technique, polymers, carbon nanowalls
Abstract:
The basic ideas of Fourier analysis have appeared in the first half of the last century; this method has proven strength predication and practical importance especially in our century. Also is possible to generate the Fourier transform on discrete structures for finite groups, and an effective calculation by the fast Fourier transform, being essential in the high-speed calculations. The Fourier transform infrared (FT-IR) technique is based, on the fast Fourier transform (FFT) algorithm of a discrete signal, resulting by crossing an infrared beam through the examined material. Due to the high computing power, the FT-IR technique provides a precise characterization of materials such as polymers; carbon nanowalls etc., samples which can be monitored over time.
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