Surface enhanced Raman spectroscopy (SERS) coupled with chemometric methods was applied to detect the presence of Sudan IV in some edible palm oil samples. We studied the samples within the 1200¨C1800?cm ??1 Raman frequency range. In predicting adulteration, we used 1388?cm ??1 Raman peak that is associated with Sudan IV as our marker.
Who owns oil in South Sudan?
South Sudan¡¯s national oil company, Nile Petroleum Corporation (Nilepet), was also involved in allocating licenses. In 2005 Sudan established the National Petroleum Commission to improve the development of the country¡¯s oil resources.
Does palm oil contain Sudan IV dyes?
By measuring and analyzing the SERS spectra of Sudan IV, prepared palm oil and other palm oil samples, we were able to detect traces of Sudan IV dyes in all four of the palm oil samples provided for analysis. This confirms the prior knowledge of adulteration in them.
What happened to South Sudan’s oil industry?
Oil fields were destroyed during the civil war and industry figures show the sector went from producing 350,000 barrels per day to 150,000 barrels. South Sudan has largely employed Chinese and Malaysian engineers to produce and export the country¡¯s crude to Sudan, where it is processed and sent on to the international market.