difference absorption spectroscopy

https://doi.org/10.1351/goldbook.D01701
A highly concentrated analyte in an @[email protected] can be determined with better @[email protected] by replacing the @[email protected] by one containing a solution of the analyte or other @[email protected] of known concentration; this is known as difference absorption @[email protected] Difference spectra can also be obtained by computer or other subtraction methods.
Source:
PAC, 1988, 60, 1449. (Nomenclature, symbols, units and their usage in spectrochemical analysis - VII. Molecular absorption spectroscopy, ultraviolet and visible (UV/VIS) (Recommendations 1988)) on page 1455 [Terms] [Paper]
Cite as: IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). Online version (2019-) created by S. J. Chalk. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.
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Last revised: February 24, 2014