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VISIBLE SPECTROSCOPY

VISIBLE SPECTROSCOPY Revised 11/21/14 1 VISIBLE SPECTROSCOPY VISIBLE SPECTROSCOPY is the study of the interaction of radiation from the VISIBLE part ( = 380 - 720 nm) of the electromagnetic spectrum with a chemical species. Quantifying the interaction of VISIBLE light with a chemical sample allows for the determination of an unknown solution concentration, the monitoring of reaction progress as a function of time, and many other quantitative uses. Understanding VISIBLE SPECTROSCOPY requires understanding VISIBLE light .

Visible light consists of wavelengths ranging from 380 nm (blue violet) to 720 nm (red). When all wavelengths of visible light are present, the light appears "white" to our eyes. If any wavelength is removed (absorbed), we perceive the remaining combination of wavelengths of light as the "complimentary" color (Table 1, Figure 1).

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