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World Health Organization Publication : Year 2003 ; Issue 9241545364, Pages Art 3: Monographs for Tablets

By World Health Organization

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Book Id: WPLBN0000173264
Format Type: PDF eBook
File Size: 0.2 MB
Reproduction Date: 2005
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Title: World Health Organization Publication : Year 2003 ; Issue 9241545364, Pages Art 3: Monographs for Tablets  
Author: World Health Organization
Volume:
Language: English
Subject: Health., Public health, Wellness programs
Collections: Medical Library Collection, World Health Collection
Historic
Publication Date:
Publisher: World Health Organization

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Organization, W. H. (n.d.). World Health Organization Publication : Year 2003 ; Issue 9241545364, Pages Art 3. Retrieved from http://community.ebooklibrary.org/


Description
Medical Reference Publication

Excerpt
Triturate a quantity of the powdered tablets equivalent to about 0.1 g of Allopurinol with 10 ml of sodium hydroxide (0.1 mol/l) VS. Filter, acidify the filtrate with acetic acid (~60 g/l) TS, and allow to stand for 10–15 minutes. Separate the precipitate, wash it with 3 ml of dehydrated ethanol R and 4ml of ether R. Allow to dry in air for 15 minutes, then dry at 105 °C for 3 hours. Keep half of the residue for test C. Carry out the examination with the residue as described under “Spectrophotometry in the infrared region” (Vol. 1, p. 40). The infrared absorption spectrum is concordant with the spectrum obtained from allopurinol RS or with the reference spectrum of allopurinol. B. The absorption spectrum of the solution obtained in the “Assay”, when observed between 230 nm and 350 nm, exhibits a maximum at about 250nm. C. To the residue obtained in test A add 5ml of sodium hydroxide (50 g/l) TS, 1.0 ml of alkaline potassiomercuric iodide TS, heat to boiling, and allow to stand; a yellow precipitate is produced.

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