低压离子色谱法测定CeO_2产品中微量氟的研究

摘要

In this papr, the determination of flourine in CeO 2 with the Low Pressure Ion Chromatography has been discussed. AgClO 4 has been added to HClO 4 dielectric in order to avoid anion such as Cl - which may affect the determination of fluorine. Fluorine has been absorbed in KOH solution after steam distillation. The optimum condition is 1.2mmol/L of Na 2CO 3 in eluting. It shows that the analytical result by LPIC is as satisfactory as that by (Ac-La) 2F 2 spectrophotometric mthods.