infrared spectroscopy

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in·fra·red spec·tros·co·py

the study of the specific absorption in the infrared region of the electromagnetic spectrum; used in the study of the chemical bonds within molecules.

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.
References in periodicals archive ?
Near infra-red spectroscopy technology is developed to exploit the very characteristic attenuation of infra-red light by water as a means to measure the water-cut in mixtures of oil and water.
The synthesized nanocomposite were examined by Fourier transform infra-red spectroscopy (FTIR) with JASCO FT/ IR410 spectrometer.
In this study our overall objective was to study the ability of near infra-red spectroscopy (NIRS) for the prediction of the time since the last and some soil properties.
Using Infra-Red spectroscopy, the FluidScan determines key lubricant condition parameters like TAN, TBN, oxidation, nitration, sulfation, soot, glycol, water and additive depletion in less than one minute.
Using a process called Fourier Transform Infra-red Spectroscopy, he confirmed the sample was ketamine.
The technique for analysing and acting upon brain activity is called functional near infra-red spectroscopy, or fNIRS.
One technique in which Campden BRI has made significant investment is Fourier transform infra-red spectroscopy, exemplified by the acquisition of an Agilent 670 FT-IR Spectrometer and an Agilent 620 FT-IR microscope, fitted with a state of the art Focal Plane Array Detector.
Three American scientists who were here last week to attend a seminar on infra-red spectroscopy visited the GFDCA laboratory and explained the uses and advantages of these lightweight gadgets that facilitate quick analysis of pharmaceutical products, dietary supplements and widely-used traditional medicines.
Fourier Transform Infra-red Spectroscopy is also employed to continuously analyse what comes out of the stacks of dedicated biomass plant, measuring how much infra-red light is absorbed by the sample.
Current instruments take advantage of mass analyzers, sometimes combined with infra-red spectroscopy (FTIR) and thermogravimetry, to analyze the gas phase and surface species.
The infra-red spectroscopy technique produces recognisable patterns that reflect the chemical composition of tissues and cells.