Modulation and Derivative Techniques in Luminescence Spectroscopy
The major advantages of fluorometry as a quantitative analytical technique are generally recognized to be its high sensitivity and, to a lesser extent, its selectivity. For many fluorescent molecules the detection limits by fluorometry are at least two orders of magnitude less than those by absorption spectrophotometry. In some cases the selectivity of fluorometry may also be superior because of the more restricted scope of fluorescence (i.e., not all absorbing molecules fluoresce) and because of the ability of the analyst to select two wavelengths (excitation and emission) for the measurement of the fluorescing species.
KeywordsAmerican Chemical Society Wavelength Modulation Selective Excitation Selective Modulation Derivative Technique
Unable to display preview. Download preview PDF.
- 3.C. S. French, A. B. Church, and R. W. Eppley, Carnegie Inst. of Washington Year Book 53, 182 (1954).Google Scholar
- 6.G. L. Collierand F. Singleton, J. Appl. Chem. 6, 495 (1956).Google Scholar
- 16.J. D. Winefordner, S. G. Schulman, and T. C. O’Haver, Luminescence Spectroscopy in Analytical Chemistry (Wiley-Interscience, New York, 1972).Google Scholar
- 18.T. J. Porro, Anal. Chem. 44(4), 93A (1972).Google Scholar
- 19.R. N. Hager, Jr., Anal. Chem. 45, 1131A (1973).Google Scholar
- 20.T. C. O’Haver and G. L. Green, “Numerical Error Analysis of Derivative Spectroscopy for the Quantitative Analysis of Mixtures”, Anal. Chem., in press.Google Scholar