It was found that the sulphonamide group and the substituents on nitrogen atom within the molecule would effect the properties of these dyes.

坚牢度和光特性,发现磺酰胺基和在它氮原子代基会影响该类染料性能。

The isomers dostribution of ortho-and para-toluenesulfonamide are successfully determined by high performance liquidchromatography (HPLC) . The results are compared with ultraviolet-spectroscopy (UV).

本文采用高效液法(HPLC),成功地测定了邻、对甲苯磺酰胺异构体分布,并用紫外光法(UV)作为对照方法进行比较。