关键词: 儿童小食品, 重金属, 食品安全

Abstract: In order to investigate the heavy metals pollution in small packs of ready food for children which were sold around the primary and junior high school in Beijing city, we measured the contents of copper (Cu), zinc (Zn), lead (Pb), cadmium (Cd), chromium (Cr) in 31 kinds of packed food by Atomic absorption spectrometry. The results showed that the detection rates of Pb and Cd in tested food were 95% and 60%～75%, and content of Cd in 12.5%～25% of tested food had exceeded the national standards, meanwhile the content of Cr in some ready food also had exceeded standards. Cd pollution was more serious than otherheavy metal, it existed in 45%～75% of the tested food with the content over 1/2 standard or standard. Although the heavy metal pollution in our tested food is not serious except for Cd, most heavy metals contents were lower than 1/2 national standard, the fact that most of heavy metal can be checked out should be paid attention.

Key words: small packs of ready food for children, heavy metals, food safety