Student Branches of the American Pharmaceutical Association**Presented before Joint Session Section on Education and Legislation, A. Ph. A., A. C. P. F., and N. A. R. P., New Orlcans meeting. 1021.

✍ Scribed by Jordan, C.B.

• Publisher: Elsevier
• Year: 1922
• Weight: 230 KB
• Volume: 11
• Category: Article
• ISSN: 0898-140X
• DOI: 10.1002/jps.3080110108

✦ Synopsis

preparations were bought in the open market and two aromatic fluid extracts were made from identified dried barks, one collected in 1918, and the other in 1'931. All of these preparations were tested in the following manner:

Make acid with hydrochloric acid and shake out with 50 cc of ether, wash the ether with watet, and extract it with a few cc of 10% ammonia solution. When a brown coloration obscures the test, shake out the ether, which is yellow in the presence of emodin. with water, then with a cold saturated sodium bicarbonate solution, and discard the aqueous layer. Shake out the ether with 10% ammonia. A pink color in the aqueous solution indicates the presence of emodin.