1.A method for determination of nitrogen in N-MnFe by titrimetry with amidosulfonic acid after alkaline distillating separation has been studied in this paper.

1.本究了强碱蒸馏分离-氨磺酸定法测定氮锰铁中氮的分析方法。

2.METHODS Sodium tetraphenylboron gravimetric analysis was replaced by highly-accurate nephelometric titrimetry to determine potassium chloride in Compound sodium chloride injection.

2.方法用高精散射定法代替四苯硼钠重量法。