【摘要】 本文研究了快速测定石墨灰分中 14种杂质元素 Al,Ca,Cd,Co,Cr,Cu,Fe,Mg,Mn,Mo,Ni,Ti,V,Zn的分析方法 ,以满足提纯石墨研究工作对快速了解石墨提纯效果的要求。依据测定样品中各元素的含量情况 ,实验选择 14种元素的分析线。运用 ICP- AES谱线轮廓图功能 ,消除常量元素产生的基体背景干扰。运用干扰系数法进行测定结果校正 ,并对 ICP- AES测定灰分中 14种元素的检出线、精密度、准确度进行了测定。结果显示 ,本方法分析石墨灰分中杂质元素能够满足提纯石墨研究工作的要求。更多还原

【Abstract】 This paper studies a sequential scan ICP-AES method for the determination of Al,Ca,Cd,Co,Cr,Cu,Fe,Mg,Mn,Mo,Ni,Ti,V and Zn in high purity graphite ash to meet the requirements of those studying the purification of graphite for rapid judgement of purification efficiency. All analytical lines of these fourteen elements were experimentally selected according to the element contents in the samples. The base line background noise interference caused by the main elements’ emission lines was eliminated by using the profile function of the ICP-AES. The results were corrected with the interference coefficient method. The detection limit, precision and accuracy were determined for all the fourteen elements. The results indicate that this analytical method is satisfactory for analyzing high purity graphite ash samples.更多还原