Determination of 8 Heavy Metal Elements in Paper-Based Food Contact Materials by Microwave Digestion-Inductively Coupled Plasma Mass Spectrometry

    WANGZijian，GONGLitong，LI Qian (Daxing Center for Disease Control and Prevention， Beijing 10260o， China)

    Abstract： Objective： Establishment of microwave digestion-inductively coupled plasma mas spectrometry for the deteminationofeighthavymetalelements (lead，cadmium，arsenic，mercury，nickel，obium，homum，nd thallum) in paper food contact material.Method： Paper food contact material samples were digested and weighed by a microwave digestion apparatus and measured using inductively coupled plasma mass spectrometry. Result： Chromium， nickel， lead and barium were between 0μg?L^-1 and 100.00μg?L^-1 ，cadmium， arsenic， and antimony were between 0μg?L^-1 and 20.0μg?L^-1 ......