absorption peak


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Related to absorption peak: absorption band

absorption peak

[əb′sȯrp·shən ‚pēk]
(spectroscopy)
A wavelength of maximum electromagnetic absorption by a chemical sample; used to identify specific elements, radicals, or compounds.
References in periodicals archive ?
For pure transformer oil when subjected to thermal degradation test, the wave length lies between 200 to 300 nm and the absorption peak varies based on the level of thermal degradation.
Here, the absorption peak at 280 nm is attributed to [pi] - [pi] * transition of benzene ring; at 390 nm to the transition absorption of polaron to [pi] *, and the tail peak at 800 nm corresponds to the absorption of polaron after being doped by proton.
An overlying ester carbonyl absorption peak appeared at about 1,730 [cm.
Two additional absorption peaks are observed in pork skin, which were not present in other adulterants and EBN itself.
It should be pointed out that the carbonyl absorption peak of DMPA unit existing in the PUU macromolecular chain is located at 1550 [cm.
A shift in the absorption peak position towards the higher wavelength region is observed in the temperature range form 27[degrees]C to 150[degrees]C.
The UV absorbance of HP-b-CD didn't present any absorption peak within 220-400nm.
1] corresponding to the acrylate double bonds, and the carbonyl group absorption peak in the range of 1688-1828 [cm.