The most elaborate, but totally destructive, assay method is the fire assay, or cupellation.

Differences in assay methods or antigens could be important.

Determined by consideration of all biological assay methods (circa 1970).

Some assay methods are suitable for raw materials; others are more appropriate for finished goods.

Mary Shorb deduced that the LLD growth rate could be refined as an assay method for the active ingredient.

Compared to existing assay methods, this procedure is quick and easy and operates at the pH of the human stomach.

A non-radioactive assay method has been developed by the company Dia-Sorin.

Currently, due to the spread of automated spectrophotometers colorimetric assay methods using Nessler cylinder and visual assessment are used very rarely.

Rapid diagnostic assay methods are available for the identification of multiple drug-resistant cases.