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A calibration curve, also called a standard curve, is a method for measuring the concentration of a drug in an unknown sample by comparing it to a series of known concentration standard samples.

• On two distinct devices, the same material with the same concentration might sometimes produce different detection responses.
• They employ calibration curves or standard curves to optimize their work and efficiency.
• A calibration curve is a graph of detector response vs analyte concentration. That means we should examine a standard solution before using our sample (whose concentration is known).
• The calibration curve is a graph that we may obtain from its analysis, and its aim is to provide us with a graph and detector response values that can be used as a reference value.
• One can calibrate our method of analysis in order to obtain precise results by doing so.

Thus, A calibration curve is a graph of detector response vs analyte concentration.