Assay

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Related to Immunoradiometric Assay: radioimmunoassay

Assay

Metal purity test to confirm that the metal meets the standards for trading on a commodities exchange (commodities exchange center).

Assay

To test precious metals for their purity. This is important to commodities and futures involving precious metals, in which the quality of the underlying metals must be specified in the contract.

assay

A test to determine the purity of gold, silver, or other precious metals. Metals used for delivery of futures contracts must be assayed to verify that they meet standards established by the exchange on which the contracts trade.
References in periodicals archive ?
Furthermore, with use of an immunoradiometric assay increased concentrations were found in 63% of patients with gastroenteropancreatic endocrine tumors (26).
IMMULITE chemiluminescent immunoassay for PTH in pediatric samples compared to Nichols institute immunoradiometric assay. Clin Biochem 1997;30:374.
These guidelines contain specifications for both diagnosis and treatment of end-stage renal disease (ESRD) based on intact parathyroid hormone (iPTH) values obtained by the Nichols Institute Diagnostics' Allegro[R] iPTH immunoradiometric assay (IRMA).
In 19 patients, hCG and hCG[beta] were also measured by monoclonal immunoradiometric assays, which showed increased concentrations of either marker in 37% of subjects.

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