硒及硒化物可防治多种与硒缺乏相关的疾病。
Selenium and seleno-compounds could prevent or remedy diseases in which selenium is deficient.
因此，硒的测定及形态分析对于了解不同形态的硒化物在生物体和环境中的迁移转化规律具有重要意义。
Speciation analysis of selenium is very important. It may lead to better understanding for the transformation and distribution of different selenium compounds in our life and environment.
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