The sample of catalyst is dissolved in the mixacid of HCl and HF, the SrCl is used as ragged reagent then determined the Fe content by acomic absorption apectromictry directly.

• 本文采用了以盐酸和氢氟酸溶解催化剂，以氯化锶为掩蔽剂，直接用火焰原子吸收法测定催化剂中铁的含量。