assays

An assay is a scientific test used to measure the presence, amount, or activity of a substance in a sample. It helps determine how much of a particular compound, such as a drug, protein, or mineral, is present. Assays are essential in fields like healthcare, research, and quality control to ensure products are safe, effective, and meet specific standards. They can involve techniques like chemical reactions, measurements, or biological processes to provide accurate information about the sample’s content.