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Assay
Up to GlossaryThis Definition applies to: Any version.
i) A method to analyze or quantify a substance in a sample. An assay is an analysis done to determine: The presence of a substance and the amount of that substance, The biological or pharmacological potency of a drug, www.als.net. ii) A chemical test performed on a sample of ores or minerals to determine the amount of valuable metals contained, www.miningbasics.com
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