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 ?
76,82) Nowadays, three major methods are used for the measurement of factor VIII, namely one-stage methods, classical two-stage assay and chromogenic assays.
for the Rivaroxaban Anti-Factor Xa Chromogenic Assay Field Trial Laboratories.
All patients who had been on heparin within 12 hours of labor were given a heparin test, consisting of an anti-Xa chromogenic assay.
Contribution of (1 [right arrow]3)- [beta]-D-glucan chromogenic assay to diagnosis and therapeutic monitoring of invasive aspergillosis in neutropenic adult patients: a comparison with serial screening for circulating galactomannan.