Detection of Heavy Metal Migration in Food Packaging Materials by CP-MS Method
Objective:Analysis of heavy metal migration in food packaging materials based on inductively coupled plasma mass spectrometry.Method:Polyethylene(PE)and Polypropylene(PP),common packaging materials,were used to detect seven heavy metal elements in packaging materials,including Cd,AS,Sb,Pb,Ni,Cr and Ba,by inductively coupled plasma mass spectrometry.Result:The metal elements in polyethylene and polypropylene materials exhibit good linear relationships.The detection limit of the method was 0.010～0.034 μg·L-1,the recovery rate was 89.95%～119.38%,and the precision relative standard deviation was 1.1%～5.7%.Conclusion:This method has high accuracy and fast detection speed,and is suitable for the detection of heavy metals in food packaging materials,which is worthy of popularization and application.
inductively coupled plasma mass spectrometryfood packagingheavy metal
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