ICP-AES直接粉末法分析中谱线强度的变动与缓冲剂和内标的应用研究

• 作 者: 吴朝衡 章志仁 王淑云 张齐维
• 机 构: 四川省地质矿产局成都中心实验室,四川省地质矿产局成都中心实验室,四川省地质矿产局成都中心实验室,四川省地质矿产局成都中心实验室
• 出 处: 光谱学与光谱分析
• 发表日期: 1985年05期
• 关键词: 谱线强度 ICP-AES 粉末法 原子线 载气流量 实验数据 内标线 灯丝电压 进样量 激发温度

本文研究了ICP-AES直接粉末法分析中一些主要因素(诸如:ICP电学参数、载气流量、单位时间进样量及试样成分等)对谱线强度的影响问题。作者指出,分析过程中上述因素常发生非人为所能控制之变化,谱线强度亦随之改变,所造成的分析误差,可藉助缓冲和内标的作用加以减弱或消除。文中以大量实验数据阐明了ICP-AES直接粉末法分析中缓冲剂和内标的作用并提出了供参考的选择原则。

In this paper, the influence of some main factors (such as ICP electrical parameters, carrier gas flow rate, sample volume per unit time, sample composition, etc.) on the intensity of the line was studied in ICP-AES direct powder analysis. The author points out that in the process of analysis, the above-mentioned factors often occur in a non-human-controlled manner, and the intensity of the spectral lines also changes. The analysis errors caused can be weakened or eliminated through the help of buffer and internal standard. In this paper, a large number of experimental data to clarify the ICP-AES direct powder analysis of the role of buffer and internal standard and proposed for selection of the principle of reference.