氟离子标准序列配制方法误差分析及实验

Error Analysis of Fluorine Ion Standard Array Compounding Method

水样中氟离子含量很低,选择的氟离子标准序列也很低,每日配制氟离子标准序列时,因为人的视觉误差,对第一序列会产生较大的相对误差。通过氟离子标准序列对比实验认为,配制方法可以从每日进行相同序列配制,改为定期配制、每日观测。从实验数据看,新方法标准序列数据较旧法序列稳定,重复性高,相对误差小。

Because the content of fluorine ion in water sample and the content of fluorine ion standard array are very little, collimation error will lead to large relative error to the fluorine ion standard array while compounding every day. Contrast experiments shows that the fluorine ion standard array compounding method can be changed from daily compounding to 20-day compounding and everyday observing. The new fluorine ion standard array compounding method is more stable, easer to repeat and has lower relative error compared with the old one.