Investigation on the presence of Sunset Yellow and Tartrazine in commercial beverages and quantitation using Ion-Pair formation and extraction / Zailuddin Ariffin, Faridah Hanum Badrun and Baharudin Salleh

In this work, 18 different commercial beverages were analyzed for the detection of Sunset Yellow and Tartrazine by paper chromatography. Quantitation of samples containing only one added colour proceeded using the ion pair formation and extraction method. The results obtained showed that all the commercial beverages tested contain synthetic colours permitted for use based on the Malaysian Food Act 1983. Quantitation of soft drinks which contained only one added colour complied with the U.K. standard, although one sample showed a slight excess compared to the set limit of 50 mg/L

Initial investigation of marine pollution by oil and grease at Kuala Sg. Perlis, Perlis using the Partition Gravimetric Method

An initial investigation was carried out to determine the status of marine pollution by oil and grease (O&G) at the jetty area of Kuala Perlis, Perlis. Five sampling points were chosen and the partition-gravimetric method was used to measure the concentration of the O&G pollutant. The results obtained indicated that the waters at the jetty are contaminated by oil and grease, and that tidal conditions affect the measurements due to the decreased boat and ferry activity during low tides. This finding on oil and grease contamination is consistent with results reported by the Department of Environment Malaysia, which indicate the oil and grease levels in the coastal waters off Kedah/Perlis have exceeded the set standard of 0 mg/L