电感耦合等离子体原子发射光谱法测定炼锑泡渣中碲  

Determination of tellurium in refined antimony slag by inductively coupled plasma atomic emission spectrometry

作　　者：张忠亭[1] 邓飞跃[1] 蒋苏琼[1] 刘逸群[1] 李彪[1] 

机构地区：[1]中南大学化学化工学院,湖南长沙410083

出　　处：《冶金分析》2011年第10期46-49,共4页Metallurgical Analysis

摘　　要：建立了用电感耦合等离子体原子发射光谱法(ICP-AES)测定炼锑泡渣中碲的方法。选择波长为214.281nm的谱线作为碲的分析线,只有La 214.281nm,V 214.274nm,Pt214.250nm,Nb 214.291nm和Re 214.297nm线有干扰,但炼锑泡渣中La、V、Pt、Nb、Re含量都很低,其影响可以忽略,因此不需要进行预分离,样品用王水溶解后可直接进行ICP-AES测定。考察了仪器工作参数对测定结果的影响,并确定了最佳工作条件:观测高度为15mm,雾化气流速为0.8L/min,射频功率为1 300W。方法线性范围为0.01～100mg/L,线性相关系数为1.000 0,检出限(3σ)为0.007 2mg/L,样品测定结果的相对标准偏差(RSD)为0.16%,加标回收率为97%～102%。The determination method of tellurium in refined antimony slag by inductively coupled plasma atomic emission spectrometry（ICP-AES） was established.The spectral line of 214.281 nm was used as the analytical line of tellurium.Only La 214.281 nm,V 214.274 nm,Pt 214.250 nm,Nb 214.291 nm and Re 214.297 nm lines had interference.However,the content of La,V,Pt,Nb and Re in refined antimony slag were very low,so their influence could be ignored and the pre-separation was not necessary.After dissolving with aqua regia,the sample solution was directly determined by ICP-AES.The effect of instrumental working parameters on determination results was investigated.The optimal working conditions were as follows： observation height,15 mm;flow rate of atomizing gas,0.8 L/min;radio frequency power,1 300 W.The linear range of method was 0.01-100 mg/L with correlation coefficient of 1.000 0.The detection limit（3σ） was 0.007 2 mg/L.The relative standard deviation（RSD） was 0.16 %,and the recoveries of standard addition were 97 %-102 %.

关 键 词：电感耦合等离子体原子发射光谱 炼锑泡渣 碲 

分 类 号：O657.31[理学—分析化学]