Last Review: June 2005The description of the "loss on drying" in a chemical analysis should fall within the allowable range described in that document. Therefore, upon receiving a chemical, the pharmacist must note if the value for loss on drying falls within the allowable specification; if it doesn't, the pharmacist must return the chemical to the manufacturer.
|DEXCHLORPHENIRAMINE MALEATE, USP|
|Description||Limit (min- max)||Result|
|Loss on drying||up to 0.5%||0.04%|
In this case, the limits in the assay value are established by the USP and the result falls within the allowable range. Therefore, no correction is required.