From AAS analysis, it shows that the composition of as-cast La3-xMgxNi2.5Co0.5 (x=0.1, 0.33, 0.5, 0.8) alloys synthesized with induction melting preparation methods was controlled well.

• 原子吸收光谱分析结果表明，感应熔炼法制备La_(3-x)Mg_xNi_(2.；5)Co_(0