absorption spectrum

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absorption spectrum

n.
The electromagnetic spectrum, broken by a specific pattern of dark lines or bands, observed when radiation traverses a particular absorbing medium and through a spectroscope. The absorption pattern of an element is unique and can be used to identify the substance of the medium.

absorption spectrum

n
(General Physics) the characteristic pattern of dark lines or bands that occurs when electromagnetic radiation is passed through an absorbing medium into a spectroscope. An equivalent pattern occurs as coloured lines or bands in the emission spectrum of that medium

absorp′tion spec`trum


n.
the spectrum formed by electromagnetic radiation that has passed through a medium in which radiation of certain frequencies is absorbed.
[1875–80]

absorption spectrum

The pattern of dark lines and colors made when light passes through an absorbing medium, such as a gas or liquid. The dark lines represent the colors that are absorbed. Because each type of atom absorbs a unique range of colors, the absorption spectrum can be used to identify the composition of distant substances, such as the gaseous outer layers of stars.
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Noun1.absorption spectrum - the spectrum of electromagnetic radiation that has passed through a medium that absorbed radiation of certain wavelengthsabsorption spectrum - the spectrum of electromagnetic radiation that has passed through a medium that absorbed radiation of certain wavelengths
spectrum - an ordered array of the components of an emission or wave
References in periodicals archive ?
The optical absorption spectra of the NIR fibre and of the bulk sample show band at 3.
Optical absorption spectra are measure using a Genesys 10S UV-VIS spectrophotometer.
Then, she lectured about spectroscopy and led the students through some fun, hands-on labs including identifying the make-up of light sources from emission spectra and identifying an unknown plant extract by comparing it to the absorption spectra of two known plant extracts.
Emission and absorption spectra can describe the makeup of faraway stars and other celestial bodies.
2] NPs colloidal were determined by UV-Visible absorption spectra of the solution by using UV-Vis spectrophotometer.
Broadband single-shot 2D high resolution absorption spectra capture will allow highly selective molecular detection in complex gas mixtures in the ppbv levels in real time.
Ultraviolet-visible (UV-vis) absorption spectra of the spin-coated film were obtained using a UV-vis spectrophotometer (S-4100 PDA, Scinco Co.
Ultraviolet-visible-near infrared (UV-Vis-NIR) absorption spectra also were collected on two additional samples by one of us (GRR), merging data from three spectrometers: an OceanOptics UV CCD, a silicon-diode array visible spectrometer and a Nicolet iS50 near-infrared unit (Figure 6).