To ensure the quality of drug, a acidic chromogen-BCG coloremetric method, which is used to study the stability of the naltrexone hydrochloride, is developed.

• 为保证药物质量，需要对盐酸纳曲酮的稳定性进行考察。因而建立了酸性色素-溴甲酚绿比色法，用于药物的稳定性研究。