On August 6th, 2009 Hebei Cangzhou Dahua Co., Ltd. (SH: 600230, CangzhouDahua) announced that the company will conduct the combined commissioningon its new 50
Fluorescence and cofluorescence properties of Tb(Ⅲ) solid complexes were studied using pyromellitic acid (PMA) as ligand and fluorescence inert ions as doping