WET VERSUS DRY WEIGHTS FOR HEAVY-METAL TOXICITY DETERMINATIONS IN DUCK LIVER

Determinations for heavy metals in duck liver using wet weight in lieu of dry weight produced errors that could not be quantitated. Weight loss through air-drying ranged from 10 to 21% in the first 2 h. for frozen tissue and 7 to 11% for fresh tissue. This difference becomes increasingly variable with time.