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Spectrophotometric Color Matching: A Straightforward Alternative to Kubelka-Munk Analysis of Reflectance Data for Readout of Water Quality Monitoring Disks
Technical Paper
2005-01-3064
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
We are developing a spacecraft water quality monitoring system based on measuring the change in diffuse reflectance of indicator disks following exposure to a water sample. The most widely used approach for deriving quantitative information from a diffuse reflectance spectrum involves an initial Kubelka-Munk transformation of the reflectance data. Provided the assumptions underlying the transformation are satisfied, the magnitude of the resulting function varies linearly with analyte concentration. We measure diffuse reflectance spectra using a commercial-off-the-shelf handheld spectrophotometer designed for color matching applications. Spectra are currently downloaded and transformed to obtain the value of the Kubelka-Munk function at a detection wavelength diagnostic of the analyte. This value is then used to quantify the analyte via a standard response curve. Data workup would be greatly simplified if the color matching capabilities of the spectrophotometer could be used to read out analyte concentrations directly by matching the color coordinates obtained from the indicator disks to those of premeasured standards. Results will be presented comparing the utility of color matching to that of the Kubelka-Munk transformation for the quantitative analysis of spacecraft water constituents using diffuse reflectance spectrophotometry.
Authors
- Robert J. Lipert - Ames Laboratory - U.S.D.O.E, Institute for Combinatorial Discovery, Department of Chemistry, Iowa State University
- April Hazen-Bosveld - Ames Laboratory - U.S.D.O.E, Institute for Combinatorial Discovery, Department of Chemistry, Iowa State University
- Marc D. Porter - Ames Laboratory - U.S.D.O.E, Institute for Combinatorial Discovery, Department of Chemistry, Iowa State University
- Daniel B. Gazda
Topic
Citation
Lipert, R., Hazen-Bosveld, A., Porter, M., and Gazda, D., "Spectrophotometric Color Matching: A Straightforward Alternative to Kubelka-Munk Analysis of Reflectance Data for Readout of Water Quality Monitoring Disks," SAE Technical Paper 2005-01-3064, 2005, https://doi.org/10.4271/2005-01-3064.Also In
References
- Plumlee, D. K. SAE Technical Paper Series No. 2002-01-2537 Warrendale, PA 2002
- Arena, M. P. Porter, M. D. Fritz, J. S. Anal. Chem. 2002 74 185 190
- Arena, M. P. Porter, M. D. Fritz, J. S. Mudgett, P. D. Rutz, J. Schultz, J. R. SAE Technical Paper Series No. 2002-01-2535 Warrendale, PA 2002
- Arena, M. P. Porter, M. D. Fritz, J. S. Anal. Chim. Acta 2003 482 197
- Fritz, J. S. Arena, M. P. Steiner, S. A. Porter, M. D. J. Chromatogr., A 2003 997 41 50
- Gazda, D. B. Fritz, J. S. Porter, M. D. Anal. Chim. Acta 2004 508 53 59
- Gazda, D. B. Lipert, R. J. Fritz, J. S. Porter, M. D. Anal. Chim. Acta 2004 510 241 247
- Gazda, D. B. Fritz, J. S. Porter, M. D. Anal. Chem. 2004 76 4881 4887
- Fritz, J. S. Analytical Solid-Phase Extraction Wiley-VCH New York 1999
- Kortum, G. Reflectance Spectroscopy: Principles, Methods, Applications Springer New York 1969
- Wendlandt, W. W. Hecht, H. G. Reflectance Spectroscopy Inter-science New York 1966
- Blitz, J. P. Modern Techniques in Applied Molecular Spectroscopy Mirabella, F. M. John Wiley & Sons, Inc. New York 1998 185 219
- Ivanov, V. M. Kuznetsova, O. V. Rus. Chem. Rev. 2001 70 357 372
- http://www.hunterlab.com/color_theory.php .
- Gazda, D. B. Fritz, J. S. Porter, M. D. Anal. Chim. Acta 2004 508 53 59
- Gazda, D. B. Lipert, R. J. Fritz, J. S. Porter, M. D. Anal. Chim. Acta 2004 510 241 271
- Lieu, V. T. Frodyma, M. M. Talanta 1962 13 1319