【摘要】 采用碘化钾-结晶紫体系,在优化的条件下利用硒（IV）与过量的碘化钾生成I₃^-,I₃^-进一步与结晶紫反应生成离子缔合物,引起体系的共振光散射强度显著增强,据此建立痕量硒测定的新方法。更多还原

【Abstract】 A new resonance light scattering（RLS） method for determination of selenium（Se） was developed in KI-crystal violet（CV） system. Under the optimized conditions, I₃^- is produced through the reaction of Se（IV） and excessive KI, and I₃^- further reacts with CV, resulting in great enhancement of the intensity of RLS. A new method for the determination of trace selenium is thus established.更多还原