硒在生物体中既是一个必要的营养元素,又是一个毒性元素。人体血液中硒含量与人体健康密切相关。痕量元素硒的分析对生理、病理的研究及环境保护均具有重要意义。有关硒的测定,已有一些文献报导。以往多采用分光光度法,氢化物发生原子吸收法,分析前样品需要预处理,操作比较繁琐,且在消化过程中分析物易挥发损失。近年来,用非火焰原子吸收测定硒,具有灵敏度高,快速,简便的特点。 Selenium in the body is both a necessary nutrient, but also a toxic element. Selenium content in human blood is closely related to human health. The analysis of trace element selenium is of great importance to the study of physiology and pathology as well as environmental protection. Selenium determination has been reported in the literature. In the past more spectrophotometry, hydride generation atomic absorption spectrometry, pre-analytical samples need pretreatment, the operation is more cumbersome, and in the digestion process of analyte volatile loss. In recent years, the determination of selenium with non-flame atomic absorption, with high sensitivity, fast, simple features.