采用内标质谱法测量不锈钢基体的锂含量.依据CNAS等标准,分析了测量结果中不确定度的来源,计算了每种因素造成的不确定度,最后合成了最终测量结果的标准不确定度和扩展不确定度.

Design washing tower,100 tons of annual production capacity to meet the needs of CF4.Aim is to remove the mixture of acidic impurities.Practical operation shows that spray washing tower to meet the needs of CF4 production,to ensure that product acidity.