The determination of Disperse Yellow RGFL, Disperse Brown 2RL and Disperse Red S-BWFL on coloured Dacron fibres by coefficient multiple derivative spectrophotometry is described.

• 本文介绍了用系数倍率导数光谱法同时测定黄棕色涤纶上的分散黄RGFL、分散棕2RL、分散红S－BWFL的配比。