摘要
报道了用高分辨时序扫描式光谱仪对高纯稀土基体的光谱干扰系统研究的第１部分。主要内容包括：选择了每个稀土元素的杰出线４条；考察了高分辨型光谱仪对１５个稀土元素６０条灵敏线的信背比、背景相当浓度值以及每条线的估算检出限；记录了高纯稀土Ｃｅ、Ｐｒ和Ｎｄ分别对其它１４个稀土元素的６０条谱线在０．２ｎｍ窗口内的光谱干扰谱图；鉴定了每种基体在分析线邻近（±０．０５ｎｍ）可能的干扰线波长以及在峰基体干扰相当浓度值。综合考察后，选择了不同基体时每个稀土元素的最佳分析线。
e results for investigation of spectral interferences from high purity rare earth matrices using a high resolution sequential ICP AES are reported in this paper. Spectral interferences on 60 selected prominent lines of 15 rare earth elements in Ce, Pr and Nd matrices were investigated. Background equivalent concentration and the detection limits for each selected lines were evaluated. The spectral scans in the vicinity(0.2 nm) of four prominent lines for each REE in the pre￣sence of Ce, Pr and Nd matrices were recorded and interfering lines (±0.05 nm) were identified. The optimum analytical lines were also recommended.
关键词
发射光谱仪
高分辨率
稀土族
rare earth elements
sequential inductively coupled plasma atomic emission spectrometry(ICP AES)
high resolution
spectral interferences
