本文研究了固体进样-石墨炉原子吸收光谱分析测定镍基高温合金中微量铅的方法。研究结果表明,如用通石墨管进行原子化,可以用残余基体加铅标液的方法代替固体标样绘制检量线,克服无标样的困难。铅的定下限为5×15~(-5)%。。对8×10~(-4)%的含量,相对标准偏差为5%左右。方法简便,结果令人满意。 In this paper, solid injection - graphite furnace atomic absorption spectrometry determination of trace amounts of lead in nickel-based superalloys. The results show that if graphite tube is used for atomization, the calibration matrix can be drawn instead of the solid standard by using the residual matrix plus lead standard solution to overcome the difficulty of no standard sample. The limit of lead is 5 × 15 ~ (-5)%. . For 8 × 10 ~ (-4)% content, the relative standard deviation is about 5%. The method is simple and the result is satisfactory.