火焰原子吸收法测定高纯Tb_4O_7中氯离子  

Determination of Chlorine in High Pure Tb_4O_7 by FAAS Method

作　　者：叶晓萍[1] 杨慧萍[1] 

机构地区：[1]惠州学院化学工程系,广东惠州516001

出　　处：《稀土》2013年第1期90-93,共4页Chinese Rare Earths

基　　金：惠州学院基金项目(C206.0204)

摘　　要：利用火焰原子吸收法可间接测定高纯稀土氧化铽中的痕量氯离子。在一定的仪器分析条件下,样品的处理方法及介质条件对测定有很大影响。该法灵敏度高,线性范围是0.01 mg.L-1～9.0 mg.L-1,相关系数是0.9998,检出限1.5μg.L-1,回收率为93.0%～97.15%。A rapid and simple method for the indirect determination of trace chlorine in high pure Tb4 07 by FAAS was reported . The sample processing method and the ambient condition have efficient effects on the detection under the instrument analysis condition. Absorbency changes with concentration of chlorine linear range in 0.0 1 mg/L - 9.0 mg. L. The relevant coefficient is 0. 9998. The detection limit is 1.5 μg . L. Recovery rate is about 93.0% -97.15%.

关 键 词：火焰原子吸收法 介质条件 高纯Tb4O7 氯离子 

分 类 号：O657.31[理学—分析化学]