罗丹明B在酸性介质中对金能有效地提取,这是本研究的出发点,对碳糊电极伏安测定金,罗丹明B是一种合适的修饰剂。电极的制备;0.6g癸烷-1-磺酸阳离子交换剂、与2.25ml石腊油,在玛瑙研钵中充分混合,再加5g光谱纯碳粉、混和到均匀的稠度。把此碳糊填满内径8mm,深度3mm的内孔电极上。把电极置于0.02％(w/w) 罗丹明B溶液中搅拌2min,使罗丹明B附着在电极上。再放在0.85mol/lHCl-0.42mol/lKCl溶液中浸2min。再在1mol/l Rhodamine B in acidic medium on the gold can be effectively extracted, which is the starting point of this study, the carbon paste electrode voltammetry gold, rhodamine B is a suitable modifier. Electrode preparation; 0.6g decane-1-sulfonic acid cation exchanger, and 2.25ml paraffin oil, in an agate mortar thoroughly mixed, plus 5g spectral pure carbon powder, mixed to a uniform consistency. The carbon paste filled with an inner diameter of 8mm, a depth of 3mm hole electrode. The electrode was placed in 0.02% (w / w) rhodamine B solution and stirred for 2min, Rhodamine B attached to the electrode. Then put in 0.85mol / lHCl-0.42mol / lKCl solution immersion 2min. Then at 1mol / l