Studies on Trace elements of Twenty-two Seaweeds from the South Sea of China

The contents of trace elements on twenty-two economic seaweeds from the South Sea of China was analysed and determined by using inductively coupled plasma emission spectro-metryto(ICP—AES).The results showed that the trace elements of 22 kinds of seaweed were rich and the contents of Ca、Mg、Fe、Mn、P、Zn was highest;The content of Cd was rare in the heavy metal elements.The trace elements were relatively high and the heavy metal elements Cd was lowest in the Chlorophyta.The contents of race elements on the different branches of sargassaceae was not obvious difference.There was a significant difference on the contents of trace element on twenty-two seaweeds from the South Sea of China.