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 ?
Leading organisations in Biological Assay research include:
More recently, a smartphone has been used as an optical sensor to read a signal from a capillary channel (for simple biological assays such as cell sorting) or from a lateral-flow assay (a common format for pregnancy tests).
Indeed, among the biological assays present in the Pharmacopoeia of the United Slates of America, Ninth Decennial Revision, of 1916 (pages 605-606) is a description of the assay used, in which a standard cannabis tincture is defined as producing incoordination in dogs when administered in a dose of 0.
The two companies signed on 15 February 2010 an original equipment manufacturer (OEM) agreement for NorDiag's Arrow instrument platform and sample preparation reagents to be used in connection with Hain Lifescience molecular biological assays.
This new alliance unites Philips' existing strengths in medical technology, patient monitoring and healthcare IT, including solutions aimed at helping clinicians to make more informed decisions, with bioME[umlaut]rieux's expertise in the development of biological assays and its extensive knowledge of cardiovascular and infectious disease markers.
Life science applications are supported with a wide array of preprogrammed biological assays to analyse protein and nucleic acid samples and perform cell growth measurements.
MicroFluidic Systems (MFSI), was founded in 2001 and is focused on the development of microfluidic systems for automated preparation of biological assays.
The CAP-e assay provides data that enables more complex biological assays to be more correctly interpreted.
They address methods for synthesizing new materials, dynamic cellular imaging, and biological assays.
One of the emerging challenges for the NTP and the NIEHS is to use the best science to create, validate, and implement in environmental health research novel, robust, and efficient biological assays that will more effectively predict the risk of human disease and protect the health of our public.
These screening assays are alternatives to biological assays used by regulatory agencies," Schneider says.
Aclara is a leading provider of biological assays used in drag discovery and development.

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