The interaction of deoxyribonucleic acid(DNA) and Congo red (GGH) was investigated by UV-Vis spectrophotometry in Tris-HCl solution (pH 4.56).

• 采用UVVis光谱法；研究了在pH4.；56的Tris缓冲溶液中脱氧核糖核酸(DNA)与刚果红(GGH)相互作用。