Ammonium tetramolybdate is an important raw material for manufacturing molybdenum materials such as molybdenum powder, molybdenum bars, molybdenum wires, and molybdenum sheets. In the nuclear industry, molybdenum material is widely used in the manufacturing of components for nuclear reactors, such as heat exchangers, fuel element cladding, control rods, etc., due to its excellent high temperature resistance, corrosion resistance, and high strength. In addition, ammonium tetramolybdate can be used as a catalyst for certain chemical reactions and may play an indirect role in fuel treatment, wastewater treatment, and other processes in nuclear power plants. The determination of anions and cations in ammonium tetramolybdate raw materials has great guiding significance for subsequent processes.