There is a polarographic peak at-0.59 V vs. SCE for rhodamine B butyl ester(RBB)in the medium of 0.1 mol/L H 2SO 4.The AuI - 4 and RBB + were combined into a hydrophobic association molecule of AuI 4-RBB by means of electrostatic attraction.

• 在 0 1mol/LH2 SO4介质中 ,丁基罗丹明B(RBB)在 - 0 5 9伏产生 1个单扫描极谱峰。