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研究了弱碱性介质中，硝基安定经Ｈ２Ｏ２和紫外光共同作用后，反应产物的荧光特性（λｅｘ＝３５５ｎｍ，λｅｍ＝４６５ｎｍ），提出了一种测定硝基安定的新方法．标准曲线的浓度范围为０．２５～３．００ｍｇＬ－１．方法的相对标准偏差和检测限分别为２．３％和０．１３ｍｇＬ－１．可直接用于片剂中硝基安定含量的测定．
Fluorescence characteristics (λex = 355nm, λem = 465nm) of nitrobacter with H2O2 and UV light were studied in a weak alkaline medium. A new method for the determination of nitrazepam stability was proposed. The concentration of the standard curve ranged from 0.25 to 3.00 mgL-1. The relative standard deviations and detection limits of the method were 2.3% and 0.13 mgL-1, respectively. It can be directly used for the determination of nitrazepam content in tablets.