Establishment of Spectrophotometric Detection Method for Trace Amount of Cd in Lead-bismuth Eutectic

摘要

Under acidic conditions,polyvinyl alcohol(PVA)as a stabilizer,cadmium-potassium iodiderhodamine B(Cd-KI-RB)formed a stable ternary association(RB)2[CdI4],the color of the solution became fuchsia from pink,and there is a maximum absorption peak at 600 nm.The trace amount of Cd in lead-bismuth eutectic could be detected by spectrophotometry.