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《中国医院制剂规范》第二版收载的复方薄荷脑滴鼻液中鉴别项下樟脑的鉴别方法为:取本品5ml,用乙醇(95％)制成2.5mg/ml的溶液,在230-350nm的波长范围内测定吸收度,仅在289nm处有最大吸收。但我院对自制的复方薄荷脑滴鼻液按《中国医院制剂规范》第二版依法鉴别樟脑时,发现不符合规定。经以乙醇(95％)对复方薄荷脑滴鼻液进行萃取处理后,再取乙醇层依《中国医院制剂规范》进行樟脑的鉴别,符合规定,即最大吸收波长为289nm。
The identification method of compound camphor intranasal nasal drops collected in the second edition of “Chinese Hospital Preparations Specification” is: take 5ml of this product and make a 2.5mg/ml solution with ethanol (95%), at 230 The absorbance was measured in the wavelength range of -350 nm, and there was only the maximum absorption at 289 nm. However, in our hospital’s self-preparation of compound menthol nasal drops according to the “Chinese Hospital Preparation Standards,” the second edition of the law identified camphor, found that does not meet the requirements. After the compound menthol nasal drops were extracted with ethanol (95%), the ethanol layer was used to identify the camphor according to the “Chinese Hospital Preparation Standards”. The maximum absorption wavelength was 289 nm.