概述 基於缩短分析工时增产节约的目标,我们根据“钼酸铵—氯化亚锡的光电比色法定矽”“亚砷酸钠—亚硝酸钠滴定法定锰”和“二甲基乙二醛肟的光电比色法定镍”加以综合,使机床厂常用的钢材和生铁在测定其中矽锰镍三种元素时,只须称取和制备一个试料即敷应用。兹将经二十多次 Overview Based on the goal of shortening the analysis of labor-saving and production-saving, based on “Ammonium molybdate-stannous chloride photoelectric colorimetric method for determination of silicon”, “Sodium arsenite-sodium nitrite titration for the determination of manganese” and “Dimethylglyoxime Of the electro-optic colorimetric determination of nickel ”to be integrated so that the machine tool plant commonly used steel and pig iron in the determination of these elements manganese siliumbilise, weighed only and preparation of a sample that is deposited application. It will be more than twenty times