How can a standard curve be used in a laboratory?

A standard curve is a crucial tool in a laboratory for quantifying the concentration of an analyte in unknown samples. By plotting known concentrations of a substance against their corresponding measured responses (like absorbance or fluorescence), researchers can create a linear relationship. This allows for the interpolation of unknown sample values by comparing their responses to the standard curve. Standard curves are essential in assays, such as ELISA or spectrophotometry, to ensure accuracy and reliability in quantitative analysis.