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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.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
Sonographically guided fine needle aspiration with rapid parathyroid hormone assay. Ann Surg Oncol.
The PSA and all other hormone assays were carried out in an automated system.
In peptide hormone assays such as parathyroid hormone (PTH), different methods employ antibodies directed at different epitopes, which leads to measurement of different forms of the hormone, some of which may or may not be biologically active, making medical decision limits across assays impossible.7 Results are usually not comparable across laboratories, and reference intervals (and sometimes even units) differ among analysers.
However, this report was based on forty- five (45) subjects on whom both sperm analysis and hormone assays were conducted, as part of their investigations for infertility.
Clinical uses of anti-Mullerian hormone assays: pitfalls and promises.
CHICAGO - Transabdominal antral follicle count measurements are obtainable in girls as young as 4 years and were highly correlated with serum anti-Mullerian hormone assays in a cross-sectional substudy.
The anti-PTH antibody forms the basis of an existing relationship between AbD Serotec and a diagnostic company which markets clinical parathyroid hormone assays.
Currently, few laboratories run fecal hormone assays, and accuracy of the assays is controversial.
Sex steroid hormone assays, sex hormone-binding globulin, virological, haematological, and biochemical parameters were measured before and after treatment.
Hormone assays were conducted in 10 assessment periods, the first 6 at 8-month intervals.