  Based on the relations from the meson-meson mass mixing matrix, the mixing
angles of isoscalar state have been re-evaluated via mass relations and latest
experimental results. The results in the present work are compared with the
values from different theoretical models, meanwhile, the quarkonia content of
isoscalar state are presented. In order to check the validity of analysis, some
predictions on the decays of the isoscalar state are presented. These
predictions may be useful for the phenomenological analysis for meson nonet in
future experiments.
