Discrimination of adulteration of samples of Orange Juice from Different Sources using FTIR
Orange juice and associated beverages represent a huge market for drinks manufacturers. There have been instances of Orange Juice being fraudulently sold and identified as fresh Orange Juice. A rapid method that is cheap, easy to use and reproducible for the identification of the origin of orange juice would provide a huge benefit to the beverage industry Using FTIR you are required to collect spectra from the sample of orange juice supplied taken into account appropriate sample considerations such as drying of the sample for ATR-FTIR analysis. You are required to:
Complete all COSHH forms before starting experiments
Utilising FTIR spectroscopy plan an experimental design to collect spectra and to identify the constituents in the different orange juice samples and then conduct research to ascertain which is counterfeit and genuine.
Design a kinetics experiment and collect spectra as a function of time taken for the orange juice to dry (1 microlitre of orange juice is required)
Perform experiments
Provide a three pages laboratory report stating:
Aim
Techniques used and reasons for using
Results including full data interpretation (I will do it myself)
Future Work (What other techniques would you like to use and why)
What did Dr. say:
FTIR:
Each group will be given 3 juice samples. You will be doing kinetic experiment on these samples using FTIR.
You will have to record IR spectrum for each sample at 0.5, 1, 2, 5,8,10,12 and 15 minutes. Save the spectrum and save the files as *.txt files so that you can plot them in excel for your reports.
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