摘要
研究在表面活性剂阿拉伯树胶存在时，铋（Ⅲ）－ＳＣＮ－一罗丹明Ｂ高灵敏显色体系．缔合物λmax=580nm,ε580=2. 84×105L·mol-1· cm-1.铋在0μg/25 mL～8μg/25mL范围内服从比耳定律．
A highly sensitive spectrophotometric method has been developed for the daterhonation of Bismuth based on the formation of a complicated ion-association. Comptex of Bismuth with rhodamine B and thiocyanate in the presence of Araban. The maximum absorption of the ion-association complex is at 580 nm and its apparent molar absorptivity is 2. 84×105 L. mol-1. cm-1. Beer's law is obeyed for Bisumth in the range of 0 μg/25 mL-8μg/25 mL.
出处
《高师理科学刊》
2000年第2期38-40,共3页
Journal of Science of Teachers＇College and University
关键词
罗丹明B
分光光度法
阿拉伯树胶
铋
硫氰酸盐
Bismuth (Ⅲ) -thiocyanate complex cationicion Rhodamine B Sepectrophotometry Bismuth
