论文部分内容阅读
本文研究了偶氮溴膦-pSN(BPA-pSN)与钇的显色反应.在0.05～0.15mol/L盐酸介质中,有聚乙烯醇(PVA)存在时,BPA-pSN仅能与钇形成β型蓝色配合物.最大吸收峰位于712nm处.摩尔吸光系数为9.45×10~4.
In this paper, the color reaction of brominated phosphine-pSN (BPA-pSN) with yttrium was studied. In the presence of polyvinyl alcohol (PVA) in 0.05-0.15 mol / L hydrochloric acid solution, BPA- β-blue complex.The maximum absorption peak is at 712nm.The molar absorption coefficient is 9.45 × 10 ~ 4.