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absorption spectroscopy

   Also found in: Wikipedia 0.01 sec.
absorption spectroscopy [əb′sȯrp·shən ‚spek′träs·kə·pē]
(spectroscopy)
An instrumental technique for determining the concentration and structure of a substance by measuring the intensity of electromagnetic radiation it absorbs at various wavelengths.


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Stewart Group analyses samples using techniques from hi-tech atomic absorption spectroscopy to traditional fire assay methods, where ores are melted down and metals weighed to high degrees of precision.
Here individual researchers cover the earliest period, looking at stratigraphy, architecture, and pottery; typo-chronological conclusions about the pottery; chipped stone assemblage; the atomic absorption spectroscopy of copper-based objects; climate, fauna, and flora; and radiocarbon datings.
Up to date, all realize that optical clocks are based on the laser absorption spectroscopy.
 
 
 
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