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 ?
We need to respect the preliminary screening tests (after the European guideline for the management of syphilis): TPHA, MHA-TP or TPPA are the best single screening tests.
Both, the rapid plasma reagin test (RPR) and the microhemaglutination of the Treponema pallidum (MHA-TP) test were reactive with a RPR of 1:32.
Specific treponemal serologic testing of either the fluorescent treponemal antibody absorption test7 (FTA-ABS) or the microhemagglutination assay for antibodies to Treponema pallidum (MHA-TP) must be carried out even if the nontreponemal serologic test (VDRL or RPR) is negative3.