Calibration Curve

A calibration curve is a graph that shows the relationship between known concentrations of a substance and their corresponding measurement signals, such as absorbance or fluorescence. It's used to ensure that tests or instruments provide accurate readings. By plotting these known values, you can verify if the device or method gives correct results for unknown samples. Essentially, it acts as a reference chart, helping scientists trust the measurements they obtain, much like a map guides navigation by showing the correct relationship between data points.