Effective Range
Definition
The effective range refers to the span within which a particular measurement tool can accurately measure. For indicators, this would be their color change range where they can accurately determine the pH.
Analogy
The effective range is like the zoom on a camera. There's a certain distance where you can take clear, accurate pictures. Too close or too far away, and the image becomes blurry and unreliable.
Related terms
Accuracy: The closeness of a measured value to its true value.
Precision: The degree to which repeated measurements under unchanged conditions show the same results.
Limit of Quantitation (LOQ): The lowest concentration level that can be determined with acceptable precision and accuracy under stated experimental conditions.
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