A presentation for UB00502 English For Research Purposes, Universiti Malaysia Sabah under Dr. Jason

1. FOURIER TRANSFORM INFRARED
SPECTROSCOPY (FTIR)
BY :
FATIN NABILA BINTI ISHAK HISHAM
HK03

2. • Mechanisms of FTIR
• Regions of FTIR Spectroscopy
• FTIR in Forensics
OUTLINE OF PRESENTATION

3. INTRODUCTION
• Analytical instrument
• Determine the structure of organic compound
• The amount of light absorbed by the sample is
measured as wavelength is varied.
Source :
http://maritzaperez6270.wordpr
ess.com/2010/04/16/third-post-
second-semester/

4. Source :
http://chemwiki.ucdavis.edu/@api/deki/files/9575/fig2_disp_IR_spect.jpg

5. An Alkane IR Spectrum

6. Regions of IR spectrum
Bonds to
hydrogen
C-H
O-H
N-H
Triple
bonds
CC
CN
Double
bonds
C=C
C=O
C=N
Single
bonds
C-C
C-O
C-N
C-X
4000 2500 2000 1500 400
Fingerprint region

7. FTIR in Forensic

8. Fibre and Hair Analysis

10. Trace Analysis

11. CONCLUSION