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 ?
were used in biological assays. But chlorotic local lesions were observed only on Nicotiana benthamiana Domin.
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 0.3 milliliters for each kilogram (2.2 pounds) of the weight of the dog.
PositiveID is focused on the development of microfluidic systems for the automated preparation of and performance of biological assays in order to detect biological threats at high-value locations, as well as analyze samples in a medical environment.
The company conducts biological sample testing through its unique platform and performs multiple biological assays in an "insert-and-test" format.
Nikon Instruments' High Content microscope system features speed and flexibility for imaging and managing biological assays using a system based on the proprietary Ti inverted microscope and NIS-Elements Software.
Today's drug discovery industry, however, employs a wide range of automated liquid handling and screening technologies for biological assays and compound screening that do not compromise experimental flexibility or data quality.
General themes include human lactation as a driver of infant formula development, modern analytical tools such as molecular biological assays, and the relationship between regulatory settings and consumer behavior.
This NIH grant will support further development of patient-specific iPS cell programming processes by NuPotential, as well as VistaGen's differentiation protocols and processes focused on the validation and use of the iPS cells for regenerative medicine applications and in clinically-relevant biological assays for small molecule drug discovery and drug rescue.
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.
MicroFluidic Systems (MFSI), was founded in 2001 and is focused on the development of microfluidic systems for automated preparation of biological assays. MFSI personnel have been involved with the development of automated DNA-based pathogen detection systems and microfluidics for the US Government and commercial markets for over 20 years, including the world's first miniaturized, portable, battery-operated, real-time, polymerase-chain-reaction (PCR)-based detection system.

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