铀-苯甲酸-碱性红13光度法测定废水中的铀

Uranium-Benzaldehyde Carborylic Acid-Basic Red 13 Spectrophotometric Determination of Uranium in Waste water

本文研究了UO-苯甲酸-碱性红13显色体系．在pH值4．5～5.5的水相中，三苯甲酸配铀酰离子[UO2（C6H5COO）3]与碱性红13可形成缔合物，而此缔合物可被苯萃取在有机相中，并在位于555nm波长下有最大吸收，表观摩尔吸光系数ε为7.62×104L．mol－1cm－1．在铀含量0－20μg之间吸光度与铀含量呈线性关系．

In the paper, the colour systerm of uo-benezaldehyde carborylic aeid-Basic red 13 was strdied. The associate which can be extracted into organic phases is formed between tribeneyoic urangt ion and basic red 13-one of the basic dyes The absorption maxium at 555 nm and the apperentmolar absorptioity of 7. 62 ×104 L. cm-1mol-1 Tthe linearity range of 0-20μg of u.