Development of a generalized Fourier transform model for distinct household oil samples by performing spectroscopy analysis

Abstract

In this research work, a low-cost spectroscopy setup is developed and presented to analyze transmission (%) and absorption (AU) from different household oils samples. Four oil samples are investigated in this work. These samples consist of olive oil, mustard oil, amla oil, and red palm oil. The transmission (%) obtained for olive oil, mustard oil, amla oil, and red palm oil is 75.66%, 71.10%, 69.87%, and 68.12% at 923.2nm, 924.5nm, 925.9nm, and 927.8nm respectively. Similarly, the absorbance (AU) for olive oil, mustard oil, amla oil, and red palm oil is 0.121AU, 0.141AU, 0.153AU, and 0.163AU at 920.0nm, 923.0nm, 925.8nm, and 930.2nm respectively. A linear relationship in the wavelength range of 923nm to 928nm between transmission (%) and wavelength produce R2=0.9717 corresponding to a degree (2). Similarly, the linear relation between absorbance (AU) and wavelength produces R2=0.9997 corresponding to a degree (2). Finally, an Fourier transform model based on eigen frequencies is developed for transmission (%) and absorbance (AU) corresponding to oil samples. The maximum value of R-square corresponding to the transmission % is obtained for Amla oil. Similarly, the maximum value of the absorbance (AU) is obtained for red palm oil, which indicates a great response to the Fourier transform model.

Keywords

• Spectroscopy
• Transmission
• Absorbance
• Household oils
• Fourier transform