PT - JOURNAL ARTICLE AU - DAVID I. MACHT TI - PHARMACOLOGICAL NOTE ON CARBO LIGNI AND CARBO ANIMALIS DP - 1930 Jul 01 TA - Journal of Pharmacology and Experimental Therapeutics PG - 343--346 VI - 39 IP - 3 4099 - http://jpet.aspetjournals.org/content/39/3/343.short 4100 - http://jpet.aspetjournals.org/content/39/3/343.full SO - J Pharmacol Exp Ther1930 Jul 01; 39 AB - 1. Carbo animalis and Carbo ligni contain, respectively, minute quantities of certain bodies which enable us to differentiate between the two forms of charcoal by special, delicate biological tests. 2. This fact should be borne in mind when using pulverized charcoal for filtering solutions of highly potent pharmacological agents.