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’
    • ‘Mercury is thermally desorbed from solid samples, trapped on an in-line gold trap, and subsequently determined by cold-vapour atomic absorption spectrometry.’
    • ‘As the ion beam hits a small patch of the sample surface, it desorbs and ionizes the atoms in its path.’
    • ‘When calcium is desorbed from the cell wall, it becomes looser and the pore sizes in it increases.’
    • ‘This was followed by plasma desorption in the 1970s, which uses high energy ions to desorb and ionise molecules.’
    • ‘The electrochemical data suggest that the bilayer is desorbed from the electrode surface at this potential.’
    1. 1.1no object (of an adsorbed substance) become released.
      ‘the free radicals desorbed back into the chamber’
      • ‘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.’
      • ‘From the DMPG- and Ca 2 + doped systems data, we speculate that the time dependence of the Ca 2 + doped ULV size may be related to the fact that the bilayer charge density varies with time as Ca 2 + ions desorb.’
      • ‘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.’
      • ‘We found again that on average 1% of the lipid had desorbed per hour.’


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