摘要
本文研究了苯甲酰异羟肟酸分光光度法测定铀(Ⅵ)的方法。在pH=3.5～4.0时,铀(Ⅵ)-苯甲酰异羟肟酸橙黄色配合物能被氯仿萃取。铀(Ⅵ)在10～100ppm范围内服从比耳定律,最大吸收波长为385nm。对萃取时酸度、试剂浓度、干扰离子的影响也进行了研究。
A reagent benzohydroxamic acid for the extraction and spectrophtometric determination of uranium (Ⅵ) is described. The uramium (Ⅵ)-benzohydroxamic acid complexes in orange yellow is extracted with chloroform in pH from 3.5 to 4.0, uranium (Ⅵ) obeys the Beer's law within the rang of 10～100ppm, and has the maximum absorption wavelength of 385nm. The effects of acidity, reagent concentration an the extraction and effects of the interfermination uranium (Ⅵ) discussed.
关键词
铀
分光光度法
苯甲酰
异羟肟酸
uranium, benzohydroxamic acid, spectrophotometric
