We exceptionally grateful to adviser Dr. Kanchana Watla-iad (The adviser of Analytical Chemistry 2, School of Science)for her invaluable advice and for always being very understanding.
I would like to thank teaching assistant of Laboratory Analytical Chemistry 2 and teaching assistant of Fourier Transform Infrared Spectrophotometer room for their suggestion on several speech techniques, to ours friend in group 3 for sharing all sources of information,