Method for quantitative absorption spectroscopy, version 2.1

Version 1.5.0.0 (39.6 KB) by Tom O'Haver
A computational method for quantitative analysis by multiwavelength absorption spectroscopy
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Updated 1 Nov 2012

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A computational method for quantitative analysis by multiwavelength absorption spectroscopy, called the Tfit method, based on fitting a model of the instrumentally-broadened transmission spectrum to the observed transmission data. It has the advantages of wider dynamic range and greatly improved calibration linearity, compared to conventional methods. Run TFitDemo.m to see how it works. Version 2.1 Press K to display list of all keyboard commands. See http://www.wam.umd.edu/~toh/spectrum/TFit.html for more details.

Cite As

Tom O'Haver (2024). Method for quantitative absorption spectroscopy, version 2.1 (https://www.mathworks.com/matlabcentral/fileexchange/11970-method-for-quantitative-absorption-spectroscopy-version-2-1), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2009a
Compatible with any release
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TFit/

TFit/old TFit for Matlab 6.5/

Version Published Release Notes
1.5.0.0

Adds command-line demos tfit.m and TFit3.m, for single-component and three-component systems, respectively.
1.4.0.0

Version 2.1, November 2011, adds SNR
calculation; W key to switch between Transmission and Absorbance display.

1.3.0.0

TFitDemo.m now includes a statistics and calibration curve function.
1.2.0.0

Now includes Keyboard-operated versions TFitDemo.m and TFit3Demo.m that work correctly in later versions of Matlab.
1.1.0.0

Slider function modified by commenting out lines 337 and 373
to prevent crash on Matlab 2008 and 2009.
1.0.0.0

Change to file description.