Penelitian migrasi logam-logam Cd, Zn, Pb, dan Hg pada plastik polyethylene (PE) kemas susu segar

It has been carried out an analyse of Cd, Zn, Pb, Hg, metal in plastic polyethylene container for fresh milk namely are sack plastics, bottle plastics and bucket plastics. Plastics sample is prepared by SII. 0771 ? 83 : “Jerigen Plastik Poliolefin untuk air Minum dengan Kapasitas Bersih 20 Liter” Analyse of metal is done by atomic absorption spectrophometer (AAS). Test result indicates that in sample plastic containers are not contain Hg metal, but it contain Cd, Zn, and Pb. It happened migration of Cd and Pb metal from plastic container to fresh milk that contact. Cd, metal migration is approximately 0,0000 ? 0,0184 ppm for hours time contact and approximately 0,0000 ? 0,0284 ppm for eight hours time contact. Pb metal migration is approximately 0,0000 ? 0,0480 ppm for four hours time contact and approximately 0,0000 ? 0,0677 ppm for eight hour time contact. The migration is very small so that sample plastic containers can be used for fresh milk.