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 ?
The undertaking was that different marks would be required to distinguish between items assayed in the UK and those assayed overseas.
For the Abbott Architect BNP assay plasma was assayed undiluted as per manufacturer's instructions and for the total-BNP assay plasma was diluted 1 in 3 before analysis.
CHIKV is the only alphavirus known to circulate in Thailand; antibodies to other alphaviruses were not expected in this study, nor were they assayed. However, Ross River virus, Getah virus, Sindbis virus, and Bebaru virus have been reported to circulate in countries that border Thailand (1).
We assayed estrogenic activity according to the previously reported method using an ERE-luciferase reporter in MCF-7 cells (Sugihara et al.
Positive samples would be injected into cell cultures or embryonated eggs and, several days later, automatically harvested, assayed for HA titers, and adjusted to uniform concentrations.
Functional sensitivity was determined by measuring 10 samples between 0.01 and 0.10 [micro]g/L, assayed in duplicate daily for 10 days.
The trypsin treatment of Bti BT product resulted in a similar pattern of polypeptide solubilization; its unique polypeptide profile may account for the differences in bioreduction response, which was not seen when either cell or actin content was assayed (Figure 6A, B).