Information AboutAssay |
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An assay is a procedure where the Concentration of a component part of a Mixture is determined. There are numerous applications of an assay, such as an antigen capture assay, ''' Bioassay ''', '''competitive protein binding assay''', '''four-point assay''', '''immunoassay''', '''microbiological assay''', '''stem cell assay''', and many others. IN THE LABORATORY Assays are regularly utilized in scientific research Laboratories . DNA Assays for studying Interaction s of Protein with DNA include: Protein
Cytotoxicity Assays for studying how toxic a compound is to cells:
Viruses The number of Virus es present in a sample can be determined using a Viral Plaque assay. This technique requires counting the number of plaques formed by a virus sample, from which the actual virus concentration can be determined. Cellular secretions A wide range of cellular secretions (say, a specific Antibody or Cytokine ) can be detected using the ELISA technique. The number of cells which secrete those particular substances can be determined using a related technique, the ELISPOT assay. Drugs Illegal Drug Testing ENVIRONMENTAL CONTAMINANTS COINS , Arizona .]] An assayer is often assigned to each Mint to determine and assure that all Coin s produced there have the correct Content or Purity of each Metal in them. This is particularly important with Gold and Silver coins. PRECIOUS METALS Precious metals, Platinum , gold and silver, used in Jewellery , Silverware and other items, are assayed to test the purity of the metal. This is done in the UK by an Assay Office . Once an item has been assayed, it is usually Hallmark ed to the relevant standard. EXTERNAL LINKS
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