【摘要】 在酸性条件下 ,硒 ( )与 2 ,3′-二氨基萘 (DAN)反应生成有色的 4 ,5 -苯并苤硒脑 ,用环己烷萃取 ,在分光光度计上测定硒的方法。对实验条件及共存离子的干扰做了探讨。本方法灵敏度高、选择性好、简便快速 ,可获得满意的分析结果更多还原

【Abstract】 Under the acid condition, Se(Ⅳ) reacted with 2,3 diamononaphthalene. The resultant was extracted with cyclohexane to determine Se by spectrophotometry. The experimental conditions and the interference elements were investigated and the result was satisfactory.更多还原