Elixirs are clear sweetened usually hydro-alcoholic liquids containing flavoring substance.
TESTS FOR THE EVALUATION OF ELIXIR
Following are the tests for the evaluation of elixirs.
Consistency.
pH determination.
Refractive index
Alcoholic contents.
Identification.
Assay of active contents.
CONSISTENCY:
Should be clear.
pH DETERMINATION:
6.0 to 7.0.
REFRACTIVE INDEX:
1.4608-1.4630.
ALCOHOL CONTENTS:
It should be 
1 of the percentage given in the monograph.
IDENTIFICATION:
To 5ml add 2ml of 5M NaOH and mix. A liquid with the odour of chloroform is separated.
ASSAY OF ACTIVE CONTENTS:
To 3 grams add 25 grams of Zinc powder, 15ml of glacial acetic acid.
Add 30ml of water, boil under reflux condenser for 30 minutes, cool, filter through absorbent cotton, wash the residue with water and combine the filtrate.
Add 20 ml of 2M Nitric acid, wash the residue with water and titrate the excess of silver nitrate with 0.1M Ammonium Thiocyanate using Ammonium iron sulphate as an indicator.
Each ml of 0.1M silver Nitrate 
0.005513 grams of C2H3Cl3O2.
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