悬浮液进样石墨炉原子吸收光谱法测定土壤样品中微量硒

Determination of Trace Selenium in Soil by Graphite Furnace Atomic Absorption Spectrometry with Suspension Sampling

采用悬浮液进样石墨炉原子吸收光谱法测定土壤样品中微量硒,选用钯-抗坏血酸为基体改进剂、锆涂覆石墨管.以标准物质制作校正曲线等一系列措施,有效消除共存元素的干扰,并保证了标准系列与土壤样品的原子化条件的一致性,获得了满意的分析结果.

Graphite furnace atomic absorption spectrometry with suspension sampling was used for the determination of trace selenium in soil. Palladium-ascorbic acid was selected for improvement of matrix, graphite tuke was covered with zirconium. The method was used to the analysis of selenium in soil without effects of coexiting elements, so the results were satisfactory.