Assay definition

In the mining and metal industry, many times we will hear about assay. Mostly for the miner, or people who work in mining company, they understand assay is an analytical result of the sample. Wether it is ore or metallurgical sample. Meanwhile now, we will try to answer a lot of question about what is an assays? And assay definition

Assay definition

An assay definition is an investigative (analytic) procedure in laboratory medicine, pharmacology, environmental biology and molecular biology for qualitatively assessing or quantitatively measuring the presence, amount, or functional activity of a target entity (the analyte). The analyte can be a drug, a biochemical substance, or a cell in an organism or organic sample. The measured entity is generally called the analyte, the measurand or the target of the assay. The assay usually aims to measure an intensive property of the analyte and express it in the relevant measurement unit. The assay definition above is from The American heritage dictionary of the English language.

Furthermore, we need to find another meaning about what is an assays? and the assay definition in conjunction with mining and metal industry.

Assay definition in mining and metal industry

Assay definition is one of the branches in quantitative chemical analysis. Bugbee, 1992, in his “A textbook of fire assaying”, defines an assay as a quantitative measure of the metals contained in minerals and other processed mineral products such as concentrate of ore processing and tailings of ore processing.

assay definition, example of fire assay furnace
fire assay furnace

Along with the development of mining many parameters require the results of its analysis. The assay is not only defined as a quantitative measurement of the metal. Assay definition also relate to all metals and nonmetallic content and / or other parameters contained altogether in the ore and other processed minerals such as Sulfur, Carbon , pH, NAG (Nett Acid Generation) and as well as % Solid.

After we know and understand about assay definition, we can learn about the history about fire assay in this link.

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