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 ?
Currently, chromogenic assays based on tetrazolium dyes are becoming more and more popular.
Spiro et al., "Evaluation of the anti-factor Xa chromogenic assay for the measurement of rivaroxaban plasma concentrations using calibrators and controls," Thrombosis and Haemostasis, vol.
(19.) Samama MM, Contant G, Spiro TE, Perzborn E, Guinet C, Gourmelin Y, et al., for the Rivaroxaban Anti-Factor Xa Chromogenic Assay Field Trial Laboratories.
At week six post infusion, the two fourth dose cohort patients reached 140% and 94% of normal (as measured by one-stage clotting assay) and 93% and 65% (as measured by 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.
The detection of chromogenic assay is based on the absorbance (optical density O.D) of monochromatic (405 nm) light.