Key Concepts
1. What Reconstitution Means
Reconstitution is the process of adding a suitable diluent to a lyophilized research material to create a liquid solution with a defined concentration.
2. Milligrams and Milliliters
Milligrams describe the amount of material. Milliliters describe the volume of liquid. They are different measurements and should not be used interchangeably.
3. Concentration Formula
Concentration is calculated by dividing the total amount of material by the total volume of liquid added.
4. Example Calculation
A 30 mg vial reconstituted with 3 mL produces a concentration of 10 mg per mL. The total amount remains 30 mg; only the concentration changes.
5. Handling and Storage
Use clean laboratory handling practices, avoid unnecessary agitation, protect the material from contamination and follow the storage information provided for the specific product and batch.
6. Common Errors
Common mistakes include confusing milligrams with milliliters, copying calculations from a different vial size and failing to confirm the total amount and volume used.