assay

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assay

1. 
a. an analysis, esp a determination of the amount of metal in an ore or the amounts of impurities in a precious metal
b. (as modifier): an assay office
2. a substance undergoing an analysis
3. a written report on the results of an analysis

assay

[′a‚sā]
(analytical chemistry)
Qualitative or quantitative determination of the components of a material, as an ore or a drug.
References in periodicals archive ?
In addition, one case reported in 1991 was accepted based only on a positive radioimmunoprecipitation assay (a now obsolete test).
To produce a test that could be adapted for routine use, a radioimmunoprecipitation assay (RIPA) was developed.
Radioimmunoprecipitation assay for glutamic acid decarboxylase antibodies evaluated clinically with sera from patients with insulin-dependent diabetes mellitus.