Measuring antimony leaching from low density polyethylene

The antimony (Sb) leaching from food packaging materials made of low density polyethylene (LDPE) was investigated and optimized using response surface methodology (RSM). The individual and interactive effect of three main independent variables such as pH, temperature and retention time on the efficiency of leaching of antimony from plastic cover has been assessed.
The maximum leachability of Sb was found at alkaline pH with high temperature and less retention time. This study showed that RSM can be used as a tool to optimize the variables response for leaching of antimony from low density polyethylene covers (International Research Journal of Engineering and Technology, January 2016).
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