assay

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assay

noun analysis, ascertainment, assessment, breakdown, calculation, computation, diagnosis, experiment, exploration, measurement, probation, probe, test, test case, verification

assay

verb analyze, ascertain, assess, calculate, commute, diagnose, endeavor, evaluate, experiment, measure, research, test, try, verify, weigh
See also: analysis, attempt, diagnosis, endeavor, experiment, inquiry

ASSAY. A chemical examination of metals, by which the quantity of valuable or precious metal contained in any mineral or metallic mixture is ascertained. 2. By the acts of Congress of March 3, 1823, 3 Story's L. U. S. 1924; of June 25, 1834, 4 Shars. cont. Story's L. U. S. 2373; and of June 28, 1834, Id. 2377, it is made the duty of the secretary of the treasury to cause assays to be made at the mint of the United States, of certain coins made current by the said acts, and to make report of the result thereof to congress.

References in periodicals archive ?
With respect to the second question, the current third-generation TSH assays are exquisitely sensitive.
The results from this method comparison study suggest that a practical approach to harmonization of TSH assays could be to establish traceability of calibration to the mean values for a panel of serum samples.
Since it suppresses TSH, it makes TSH assays unreliable.
A false-negative value can be seen, however, when the interfering antibodybinds to 1 of the 2 antibodies in a noncompetitive assay (6), as in the Roche Elecsys TSH assay.
It may be necessary, however, to provide more than 1 alternative assay, because we found that 4 of 7 TSH assays were affected in our study (1), and Halsall et al.
The interference seen with the TSH assays (Bioclone Elegance, Dade Befiring Dimension, Abbott AxSYM, DPC 1MMULITE, and Beckman DxI assays) in samples from our patients appears to have been transmitted transplacentally from the mother's blood.
Evaluation of the analytical and clinical performance of a third generation TSH assay on Bayer Advia Centaur analyzer [Abstract].
The ADVIA Centaur method did not meet the definition of a third-generation TSH assay because the TSH concentration at which it had a CV of 20% was 0.
The detection limits correspond to those for the fourth- and third-generation TSH assays.
In an attempt to avoid such interference, Roche Diagnostics have used in their TSH assay "special interference-eliminating" reagents and a chimeric antibody (2).
These data suggest that the IgG[kappa] paraprotein contained within the patient's restricted immunoglobulin peak produced the false-negative results on the Abbott AxSYM TSH assay.
The imprecision of the specific signal (signal--background) was determined in the TSH assay as 82 [+ or -] 10 counts (n = 5; CV = 12%) at 3.