化学自主设计实验的探索与实践——以TiCN基合金中N含量测定为例

何英, 李青

Exploration and Practice of Self-Design Experiments in Chemical Experiment: Determination of Nitrogen Content in TiCN-Based Alloys

Ying He, Qing Li

表2 正交试验与结果分析*

序号 A 碱液的用量/mL B 蒸馏时间/min C 馏出液体积/mL D 吸收液用量/mL 氮量平均值/mg 1 40 6 50 20 19.23 2 40 8 70 30 19.57 3 40 10 90 40 19.89 4 60 6 70 40 19.84 5 60 8 90 20 19.98 6 60 10 50 30 20.02 7 80 6 90 30 19.87 8 80 8 50 40 20.03 9 80 10 70 20 20.01 k1 58.69 58.94 59.28 59.22 – k2 59.84 59.58 59.42 59.60 – k3 59.91 59.92 59.74 59.76 – R 1.22 0.98 0.46 0.54 –