1
A Nuclear Magnetic Resonance(NMR) study on
Glycerin and Fluorine
Yaxin Zhai University of Utah,
Department of Physics and Astronomy 04/17/2012
2
l Introduction
l Experimental Description
l Results and Discussion:
I. Gyromagnetic Ratios II. Transverse Relaxation Time III. Homogeneity of the Magnetic Field IV. T2 Relaxation Time
l Conclusion
Contents
3
Introduction
Nuclear Magnetic Resonance(NMR): A physical phenomenon in which magnetic nuclei in a magnetic field absorb and re-emit electromagnetic radiation.
Resonance Frequency.
4
Experimental Description
Symantec of setup
Experimental Description
5
Modulating(sweeping) Field
Experimental Description
Samples:
Glycerin 1H
Fluorine 19F
6
Results and Discussion Gyromagnetic Ratios
Measured: � Published: �
6
Results and Discussion
with
Glycerin 467.4±1.3 µs < Fluorine 687.0±6.8 µs �
Transverse Relaxation Time
7
Results and Discussion Homogeneity of the Magnetic Field
Glycerin 0.0022T Fluorine 0.0085T 8
Results and Discussion T2 Relaxation Time
A more sophisticated experimental method is required to measure T2 9
Conclusion
Conclusion
l Gyromagnetic ratios: 42.5±2.4 MHz/T for glycerin, 40.1±0.3 MHz/T for fluorine.
l Glycerin has a shorter transverse relaxation time than fluorine.
10
11