Determination of Level of Lead (Pb) and Cadmium (Cd) Migration on Bowl and Clear Plastic Cup Using Atomic Absorption Spectrophotometer

Abstract

Food safety is a condition and efforts needed to prevent food from biological and chemical pollutants and other things that might irritate, harm, endanger human health. So the food is safe to consume. Besides, it should not against religion, faith, and culture. Chemical pollutants may come from migration of the food container or packaging, for example from a bowl or clear plastic cup. Migration happens as a result of the high temperature of food, duration of storage, and the production process. The higher the temperature the higher the possibility of migration. The existence of lead (Pb) and cadmium (Cd) in food may be because of environmental pollution, absorption of metal from equipment. Research has been conducted on the determination of the level of lead (Pb) and cadmium (Cd) from the migration of some bowls and plastic glasses that are available online by using spectrophotometer atomic absorption. The research is using acetic acid 4 % simulant. The sample is identified by using Near Infra-Red. The result of two kinds of plastic bowls and one kind of clear plastic cup are Polypropylene (PP). The sample is filled with acetic acid 4% simulant, stored in a dark place for twenty- four hours, then it is measured with Atomic Absorption Spectrophotometer (AAS). In all samples consist of two kinds of bowls and one clear plastic cup. The lead and cadmium are not detected with a limit of detection (LoD) Pb is 1.33 µg/ml dan (LoD ) Cd is 0.22 µg/ml, while the limit of quantitative (LoQ) Pb is 4.43 µg/ml and ( LoQ) Cd is 0.74 µg/ml. LoD dan LoQ for lead is too high because are using AAS Flame, while ideally using AAS Graphite Furnace.