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  2. Assay - Wikipedia

    en.wikipedia.org/wiki/Assay

    Assay. An assay is an investigative (analytic) procedure in laboratory medicine, mining, pharmacology, environmental biology and molecular biology for qualitatively assessing or quantitatively measuring the presence, amount, or functional activity of a target entity. The measured entity is often called the analyte, the measurand, or the target ...

  3. Bioassay - Wikipedia

    en.wikipedia.org/wiki/Bioassay

    A bioassay is a biochemical test to estimate the potency of a sample compound. Usually this potency can only be measured relative to a standard compound. [3][1] A typical bioassay involves a stimulus (ex. drugs) applied to a subject (ex. animals, tissues, plants). The corresponding response (ex. death) of the subject is thereby triggered and ...

  4. Enzyme assay - Wikipedia

    en.wikipedia.org/wiki/Enzyme_assay

    Enzyme activity. Enzyme activity is a measure of the quantity of active enzyme present and is thus dependent on various physical conditions, which should be specified. It is calculated using the following formula: where. = Enzyme activity. = Moles of substrate converted per unit time. = Rate of the reaction. = Reaction volume.

  5. Bradford protein assay - Wikipedia

    en.wikipedia.org/wiki/Bradford_protein_assay

    Bradford protein assay. The Bradford protein assay (also known as the Coomassie protein assay) was developed by Marion M. Bradford in 1976. [1] It is a quick and accurate [2] spectroscopic analytical procedure used to measure the concentration of protein in a solution. The reaction is dependent on the amino acid composition of the measured ...

  6. Metallurgical assay - Wikipedia

    en.wikipedia.org/wiki/Metallurgical_assay

    A metallurgical assay is a compositional analysis of an ore, metal, or alloy, usually performed in order to test for purity or quality. Some assay methods are suitable for raw materials; others are more appropriate for finished goods. Raw precious metals (bullion) are assayed by an assay office. Silver is assayed by titration, gold by ...

  7. Immunoassay - Wikipedia

    en.wikipedia.org/wiki/Immunoassay

    Immunoassay. An immunoassay (IA) is a biochemical test that measures the presence or concentration of a macromolecule or a small molecule in a solution through the use of an antibody (usually) or an antigen (sometimes). The molecule detected by the immunoassay is often referred to as an "analyte" and is in many cases a protein, although it may ...

  8. Molecular diagnostics - Wikipedia

    en.wikipedia.org/wiki/Molecular_diagnostics

    Molecular diagnostics. Molecular diagnostics is a collection of techniques used to analyze biological markers in the genome and proteome, and how their cells express their genes as proteins, applying molecular biology to medical testing. In medicine the technique is used to diagnose and monitor disease, detect risk, and decide which therapies ...

  9. Viability assay - Wikipedia

    en.wikipedia.org/wiki/Viability_assay

    A viability assay is an assay that is created to determine the ability of organs, cells or tissues to maintain or recover a state of survival. [2] Viability can be distinguished from the all-or-nothing states of life and death by the use of a quantifiable index that ranges between the integers of 0 and 1 or, if more easily understood, the range ...