Assay

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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 ?
Medical company Hologic Inc (Nasdaq:HOLX) disclosed on Thursday the receipt of the US Food and Drug Administration's (FDA) 510(k) clearance for its Panther Fusion Paraflu assay that detects and differentiates Parainfluenza viruses 1, 2, 3 and 4.
This assay cross-reacts with proBNP to a similar degree as current diagnostic assays such as the Abbott BNP (19, 28).
"DiscoverX has developed industry-leading cell-based assays for bio-comparability and lot release testing of biosimilar drugs.
The global multiple reaction monitoring assay market is expected to grow moderately due to increasing research and development activities in the biologics field.
In conclusion, direct TTC and direct MODS assays may be used for effective and accurate detection of isoniazid and rifampicin resistance directly from ZN smear positive sputum samples.
The consumables segment is further segmented into reagents and assay kits, cell lines, and micro plates.
Testing of the 59 patient samples using the Siemens and the IL assays provided a range of results from 30.4-259.30%.
In this study, we evaluated the Meridian reformulated ImmunoCard, and compared it with the Meridian regular EIA and BioStar OIA assays. The ImmunoCard has been reformulated to include both toxin A and B, but no common antigen.
To optimize the assay, we performed PCR-based H274Y mutagenesis of the N1 fragment of the H5N1 virus (primers on request).
The assay's sensitivity is comparable with that of the assays that are used to measure viral load in the blood of patients already diagnosed with HIV-1, according to the FDA.
In the May 31 issue, IBO examined the emergence of cell-based assays and how developments in instrumentation have expanded the market.