电感耦合等离子体原子发射光谱法测定钛剂中铝钾铁钒  

Determination of aluminum,potassium,iron and vanadium in titanium additive by inductively coupled plasma atomic emission spectrometry

作　　者：赵德平[1] 王劲榕[1] 

机构地区：[1]昆明冶金研究院分析测试部,云南昆明650031

出　　处：《冶金分析》2013年第2期33-37,共5页Metallurgical Analysis

摘　　要：研究了用电感耦合等离子体原子发射光谱(ICP-AES)法同时测定钛剂中的铝、钾、铁、钒4个元素的条件并建立了测定方法。用硫酸、盐酸和硝酸溶解样品,选择396.1nm、766.4nm、259.9nm、292.4nm波长的光谱线分别作为铝、钾、铁、钒的分析线,在选择的最佳条件下测定,基体钛、硫酸和共存元素对测定没有干扰。Al、K、Fe、V的检出限分别为0.003 0!g/mL,0.001 7!g/mL,0.002 4!g/mL,0.001 4!g/mL。本法用于实际样品的分析,测定值与滴定法或原子吸收光谱法的测定值一致,测定结果的相对标准偏差(RSD)≤1.5%。本方法能够满足铝工业添加剂——钛剂中杂质元素分析要求。The simultaneous determination conditions of aluminum, potassium, iron and vanadium in titanium additive by inductively coupled plasma atomic emission spectrometry （ICP-AES） were stud- ied, and accordingly, a determination method was established. The sample was dissolved in sulfuric acid, hydrochloric acid and nitric acid. The analytical lines for aluminum, potassium, iron and vanadi- um were 396.1, 766.4, 259.9 and 292.4 nm, respectively. Under the optimal conditions, the matrix titanium, sulfuric acid and coexisting elements had no interference in the determination. The detection limit of aluminum, potassium, iron and vanadium was 0. 003 0 μg/mL, 0. 001 7 μg/mL, 0. 002 4μg/mL and 0. 001 4 μg/mL, respectively. The proposed method was applied to the analysis of actual samples, and the found results were consistent with those obtained by titration method or atomic absorp- tion spectrometry. The relative standard deviation （RSD） was less than or equal to 1.5 %. This method could meet the analytical requirements of impurities in aluminum industry additives （titanium agent）.

关 键 词：钛剂 电感耦合等离子体原子发射光谱法(ICP—AES) 铝 钾 铁 钒 

分 类 号：TG115.33[金属学及工艺—物理冶金] O657.31[金属学及工艺—金属学]