氢化物发生-原子荧光光谱法测定高纯锌中痕量铋  

Determination of Trace Amount of Bismuth in High Purity Zinc by Hydride Generation-Atomic Flourescence Spectrometry

作　　者：董海龙[1] 李华昌[2] 孙龄高[2] 

机构地区：[1]桂林工学院,桂林541004 [2]北京矿冶研究总院,北京100044

出　　处：《理化检验（化学分册）》2008年第2期175-176,184,共3页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

摘　　要：在标准中加入锌基体,以硫脲-抗坏血酸-盐酸羟胺混合溶液为预还原剂,硼氢化钾-盐酸还原体系,采用氢化物发生-原子荧光光谱测定高纯锌中痕量铋。方法加标回收率为98.5%-105.0%,相对标准偏差为3.9%。方法适用于高纯锌中质量分数为2.0×10^-5-1.0×10^-2%铋的测定。A method for the determination of trace amount of bismuth in high purity zinc by hydride generation atomic fluorescence spectrometry was proposed. The optimum determination conditions were studied in detail. Thiourea-ascorbic acid-hydroxyl amine hydrocloride as the mask reagent were employed. The method can be applied to the determination of2.0×10^-5-1.0×10^-2 Bismuth in high-purity zinc with the recovery of 98. 5%-105.0% and RSD of 3. 9%.

关 键 词：铋 高纯锌 原子荧光光谱法 氢化物发生 

分 类 号：O657.31[理学—分析化学]