But most of the drugs has tew fluorescence quantum yield, so some reagents must be added to produce fluorescence. 间接测定法是由于大部分药物本身无荧光或者在水溶液中的荧光量子产率低,无法直接测定药物荧光,必须通过加入其它试剂提高药物的荧光量子产率而建立的荧光分析法。
Covalent bonds between chromogen and macromolecule chains enhance their photochemical stability, increase their whitening performance and fluorescence quantum yield. 发色团与高分子链间的共价键使其光化学稳定性大大增强,增白性能和荧光量子产率显著提高。