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infrared spectroscopy
(redirected from infrared spectrum)

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infrared spectroscopy (inˑ·fr·redˈ spek·trsˑ·k·pē),
n an instrumental technique used to identify substances—in particular the functional groups present in organic compounds by measuring their absorption of infrared radiation over a range of frequencies. The absorption pattern is then compared to the infrared spectra of known substances for identification.
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To see if the component out there in space is protonated naphthalene, they had to first create it in the lab, under conditions near Absolute Zero and then zap it with a laser, turning it into a gas, whose infrared spectrum could then be analyzed.
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TT81 G70 This book takes a systems approach to the physical processes involved in the formation, collection, and analysis of polarimetric remote sensing data in the visible through longwave infrared spectrum.
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