Nuclear Magnetic
Resonance
Abdulkarim Osama Hariri, 201228600
Supervisor: Akhtar A. Naqvi
Out line
 Introduction: Uses and achivments
 Theory: nuclear spin, relaxation time
 Experiment: T1 and T2
 Results: glycerin
 Conclusion
Introduction
Use of NMR:
1) identifying new compounds
2) distinguishing between isotopes
3)dynamical features of chemical systems
4) medicine (MRI)
Nobel prize
Theory
 Nuclear spin and nuclear
magnetic moment
 Interaction with magnetic
field
Theory
 Spin-lattice relaxation time : T1 :
component of M ll to B
 Spin-spin relaxation time : T2
Component of M
B
Experiment
 A) Experimental set up
Experiment
 B) Method for measuring T1
Experiment
 C) Method for measuring T2
Results
 T1 signal (M(t)) for glycerin
Results
 T2 signal (M(t)) for glycerin
Results
 T1 results
T1 = 0.04366 s , error = 7 %
Results
 T2 results
T2 = 0.01901 s , error = 9%
Results
 Confirming the data
 Sources of error: heating
Conclusion
 NMR is a very helpful technique (used in…)
 Nuclear spin and magnatic moment
 T1 and T2