Transcription of Calibration and Linear Regression Analysis: A Self-Guided ...
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Calibration and Linear Regression Analysis: A Self-Guided ...
Calibration and Linear Regression Analysis: A Self-Guided TutorialPart 2 The Calibration Curve, Correlation Coefficient and Confidence LimitsCHM314 Instrumental AnalysisDepartment of Chemistry, University of TorontoDr. D. Stone (prepared by J. Ellis)1 The Calibration Curve and Correlation CoefficientEvery instrument used in chemical analysis can be characterised by a specific response function, that isan equation relating the instrument output signal (S) to the analyte concentration (C). This response functionmay be Linear , logarithmic, exponential, or any other appropriate mathematical form, depending on thenature of the behaviour of the system being measured, and the measurement process itself.
the Nernst equation, which is logarithmic in form. We would therefore either fit a logarithmic equation to the calibration data, or linearise the data by calculating the signal response S as 10E (where E is the cell potential). The most common response function encountered in instrumental analytical chemistry is linear, so we
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