assay


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assay

1. 
a. an analysis, esp a determination of the amount of metal in an ore or the amounts of impurities in a precious metal
b. (as modifier): an assay office
2. a substance undergoing an analysis
3. a written report on the results of an analysis

assay

[′a‚sā]
(analytical chemistry)
Qualitative or quantitative determination of the components of a material, as an ore or a drug.
References in periodicals archive ?
The relevance of an in vitro assay is often questioned because the nature and range of response of the system is unlikely to resemble fully that of the in vivo system.
The matching ready-to-use and validated SYBR(R) Green-based qRT-PCR assay portfolio is supplemented by QIAGEN's QuantiTect(R) Primer Assays for real-time RT-PCR providing specificity and sensitivity comparable to sequence-specific probe-based assays.
Blood samples from the Hong Kong cohort of patients were tested for neutralizing antibodies to the SARS-CoV S protein by using the pseudotype neutralization assay.
Most protein assays are based on colorimetric methods.
These assays test a chemical's ability to induce DNA damage.
Rather than attempting comprehensive coverage of all assay development technologies, the book introduces the most widely used assay development technologies and illustrates the art of assay development through a few commonly encountered biological targets in assay development (e.
leading provider of drug discovery, life science research and analytical solutions, has announced that its DELFIA(R) Xpress first trimester prenatal screening assays have been approved by the Fetal Medicine Foundation (FMF), London, UK.
Stimulation was also performed on whole blood samples; however, the assay had reduced sensitivity.
For this report, we examined the estrogenic activities of styrene oligomers in the presence or absence of a liver microsomal metabolic system using a yeast estrogen screening (YES) assay and an estrogen-responsive element (ERE)-luciferase reporter assay in the estrogen-responsive human breast cancer cell line MCF-7.
We calculated inhibitions as described above and defined the working range of the assay as the concentration of brevetoxins inhibiting between 20% and 80% of the signal.
DiscoveRx Corporation today announced that it has expanded its cell-based PathHunter(TM) [eth]-Arrestin assays to include 45 validated cell products, each expressing a different Gi, Gs or Gq -coupled receptor.