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absorption spectroscopy

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absorption spectroscopy

In analytical chemistry, a technique for determining the identity or amount present of a chemical substance by measuring the amount of electromagnetic radiation the substance absorbs at specific wavelengths; see spectroscopy.



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Calcium was determined by atomic absorption spectroscopy with a Perkin-Elmer Model 603 spectrophotometer (1) using an air-acetylene flame and the 442.
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If it actually originated from sea salt broken apart by ultraviolet radiation in the stratosphere, as Beckmann contended, the ATMOS instrument and various observatories should have detected it streaming up from the stratosphere to the mesosphere, especially since sodium is easily detectable by absorption spectroscopy, as Beckmann himself pointed out.
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