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desorb Line breaks: de¦sorb
Pronunciation: /diːˈsɔːb/

Definition of desorb in English:


[with object] Chemistry
1Cause the release of (an adsorbed substance) from a surface: these ‘active points’ desorb the resultant alkane
More example sentences
  • The electrochemical data suggest that the bilayer is desorbed from the electrode surface at this potential.
  • This was followed by plasma desorption in the 1970s, which uses high energy ions to desorb and ionise molecules.
  • As the ion beam hits a small patch of the sample surface, it desorbs and ionizes the atoms in its path.
1.1 [no object] (Of an adsorbed substance) become released: the free radicals desorbed back into the chamber
More example sentences
  • In the case of the early lengthening steps, the value of L p is low, suggesting that perhaps half of the structure either unfolds or desorbs to a random coil configuration with little hindered movement.
  • Ribosomes that reach the termination site desorb and re-enter the pool of diffusing ribosomes.
  • Aggregation of the cells occurs at the highest C, here most likely because poly-L-lysine desorbs from the saturated glass and begins to cross-link the red cells.


adjective& noun
Example sentences
  • The desorptive characteristics of three potential desorbents for metal recovery were assessed.
  • The desorbent has surprisingly high strength and selectivity characteristics with the preferred desorbent.
  • The feed and desorbent are supplied continuously and at the same time extract and raffinate are drawn continuously through the ports.
Example sentences
  • We used a thermal desorption unit double-stage desorber to transfer compounds from the 2-mm Carbotrap to a gas chromatograph or a GC-mass spectrometer.
  • The chemical analysis of VOCs was carried out with thermal desorption gas chromatography and an automatic thermal desorber coupled to PE 8700 gas chromatograph.
  • Sample injection was achieved via automatic thermal desorber, and detection was accomplished by a flame ionization detector.
Pronunciation: /diːˈsɔːpʃ(ə)n/
Example sentences
  • The land was then treated by a variety of methods, including solidification, bioremediation and indirect thermal desorption.
  • However, as both species start to reach equilibrium, the reverse rates make themselves felt and the less-strongly bound species B begins to come off the surface again, reversing the rate of adsorption to a net desorption.
  • A tool has been developed to measure the concentration of hydrocarbon compounds in a nitrogen-purge gas flow to the level of parts-per-thousand by using thermal desorption and gas chromatography.


1920s: back-formation from desorption (from de- 'away' + adsorption).

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