The adsorption behaviors of N,N??diphenylguanidine (sym?DPGA)? N,N??diphenylurea(sym?DPU) and N,N??diphenylthiourea (sym?DPTU) on the silver electrode in sulphuric acid were investigated by means of SERS spectra.

• 利用表面增强拉曼光谱(SERS)方法分别研究了二苯基胍(DPGA)、二苯基脲(DPU)和二苯基硫脲(DPTU)在硫酸溶液中银电极表面上的吸附行为。