HAYDEN, AL; SAMMUL, OR. Infrared analysis of pharmaceuticals. 1. Application of the potassium bromide disk technique to some steroids, alkaloids, barbiturates, and other drugs.. Journal of the American Pharmaceutical Association. American Pharmaceutical Association. August 1960, 49: 489–96. PMID 13852191.使用|accessdate=需要含有|url= (帮助)