杏仁止咳糖浆(以下简称糖浆)系由杏仁水和陈皮、甘草、百部、桔梗、远志六种流浸膏加辅料制成。目前,上海市和河北省药品标准已有收载,但尚无内在的质量标准。笔者对糖浆中氢氰酸和皂甙两种有效成分进行了鉴别试验,并且利用氢氰酸的易挥发性,采用水蒸汽蒸馏法,将馏出液用硝酸银液滴定,以测定氢氰酸的量,作为糖浆的质量控制 Almond cough syrup (hereinafter referred to as syrup) is made from almond water and dried tangerine peel, licorice root, Baibu, Campanulaceae and Polygala. At present, the Shanghai and Hebei drug standards have been collected, but there are no internal quality standards. The author conducted an identification test on the two active ingredients of hydrocyanic acid and saponin in syrup, and using the volatility of hydrocyanic acid, steam distillation was used to determine the distillate with silver nitrate droplets to determine the content of hydrocyanic acid. Quantity, as a quality control of syrup