adsorption


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Related to adsorption: Adsorption chromatography

adsorption

 [ad-sorp´shun]
the action of a substance in attracting and holding other materials or particles on its surface; see also absorption.
attachment (def. 2).

ad·sorp·tion

(ad-sōrp'shŭn), Do not confuse this word with absorption.
The property of a solid substance of attracting and holding to its surface a gas, liquid, or a substance in solution or in suspension, for example, condensation of a gas onto a surface. Compare: absorption.
[L. ad, to, + sorbeo, to suck up]

Adsorption

Chemistry An accumulation/concentration of molecules of a gas or liquid on a surface interfacing with the gas or liquid, resulting in a relatively high surface concentration.
Histology The accumulation of a substance on a surface affected by the affinities of acids to bases—and vice versa—based on electrical attraction; adsorption may explain differential affinity for dyes that occurs in histologic preparations of tissues being examined by light microscopy.
Immunology The removal of nonspecific agglutinins, by incubating the fluid of interest in a serum—e.g., of bovine origin—which lacks the antigens to be measured.
Virology The adhesion of a substance to an organic particle in a solution—e.g., adhesion of a virus to a cell.

ad·sorp·tion

(ad-sōrp'shŭn)
The property of a solid substance to attract and hold to its surface a gas, liquid, or a substance in solution or in suspension.
Compare: absorption
[L. ad, to, + sorbeo, to suck in]

adsorption

The process by which a substance, such as a gas or dissolved solid, is attracted to, and adheres to, a surface.

adsorption

the taking up of gas or liquid by a surface or interface. In physical adsorption, molecules are held by VAN DER WAAL'S FORCES of attraction; in chemical adsorption there is exchange or sharing of electrons. Compare ABSORPTION.

Adsorption

The binding of a chemical (e.g., drug or poison) to a solid material such as activated charcoal or clay.
Mentioned in: Charcoal, Activated

ad·sorp·tion

(ad-sōrp'shŭn) Do not confuse this word with absorption.
The property of a solid substance of attracting and holding to its surface a gas, liquid, or a substance in solution or in suspension.
[L. ad, to, + sorbeo, to suck in]
References in periodicals archive ?
Saturated adsorption capacity is a powerful index in the evaluation of adsorbent for Zn(II) [22].
Figure 6 shows the effect of adsorbent dosage on the saturated adsorption capacities of PAMs-2.5b toward Zn(Il).
In this work we are interested in a mediterranean red seaweed, the corallina elongata, from the East of Algeria (Jijel city), at first the study concerned its characterization by various methods: TDA, TGA, FTIR, XRD, SEM and EDX, then we studied the adsorption of methylene blue in aqueous solution by varying diverse parameters as pH, temperature, Initial concentration of methylene blue and the mass of adsorbent.
Adsorption measurements were determined, by batch experiments of known amount of adsorbent, with 50 mL of aqueous MB solutions of known concentration, in a series of 250 mL Erlenmeyer flasks.
Amphoteric oxides have surface charges that are pH dependent; they react in alkaline or acid medium to create negative or positive charges which are responsible for the cation or anion adsorption reactions.
Ce (mg/L) is equilibrium concentration of dye solution, qe (mg/g) is amount of dye sorbed at equilibrium, qmax (mg/g) is monolayer capacity of adsorbent, KL is Langmuir adsorption constant.
Protein and cellulose were the main contributors to the adsorption process.
The experimental apparatus in Figure 1, developed independently by the Institute of Mining Technology, Taiyuan University of Technology, mainly included (1) electrothermostatic water bath; (2) apparatus of injecting gas; (3) retrofitted adsorption device; (4) precise digital manometer (2.5 MPa); (5) apparatus for collecting desorbed gases; (6) TH2515 DC resistance meter; (7) gas collection system; and (8) vacuum pump.
In this paper, we report adsorption of alkyl sulfate surfactants sodium tetradecyl sulfate (STS) and SDS onto the [Al.sub.2][O.sub.3] with a large size.
The porosity parameters of the samples were studied by adsorption analysis using [[N.sub.2] as the adsorbate molecule [1].
To determine different physical and chemical parameters affecting adsorption, it is necessary to characterize the sorbent.
With the in-depth study on magnetic treatment, the combination of magnetic treatment and adsorption has become a new research focus.