permeation


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permeation

[‚pər·mē′ā·shən]
(chemistry)
The movement of atoms, molecules, or ions into or through a porous or permeable substance (such as zeolite or a membrane).
References in periodicals archive ?
Adam Bolsover, Production Technical Manager at FFP says, “We are pleased with the quality of this permeation instrument from Systech.
A theoretical analysis of transport properties in such two-phase polymer blends was made by Garmabi and Kamal [7] using the Higuchi equation [9] that keys permeation rate to the volume fraction, shape and relative permeability of a well dispersed and oriented phase.
Skin treatment by microwave followed by solid pectin film loaded with sulphanilamide and oleic acid result in permeation of all drug molecules that are released from film [42].
In conjunction with the certified laboratory network, the company adds, it is also introducing the Mocon Data Check 4 program, which offers periodic permeation testing services for an annual flat rate.
Systech Illinois' permeation analysers are vital to accurately and reliably measure the rate of oxygen and water transmission through the film.
Consequently, changes in diffusion and/or partition may occur as a result of absorption or depletion of permeation enhancer inside the membrane/or skin over time which validates our results.
In addition to having performance data listed for over 20 of their key chemical protective gloves, the new chart also includes permeation performance and breakthrough time information for its disposable gloves, which have been tested against almost 100 workplace chemicals.
The properties of this vinyl ester material have other significant advantages over other linings, especially its permeation resistance," said Rak.
In addition, the rate of water vapor permeation showed a linear relationship with the thickness of the films.
It is well known that essential oils are able to permeate the skin whereas the lipophilic properties of the compounds as well as the application site have an influence on their permeation behaviour.
2 -- KIN-TEK has offered FlexStream automated permeation tube system combined with secondary dilution module SD that creates variable concentration gas mixtures in constant output flow.
Systech has further enhanced the performance of the unique 8700 oxygen permeation analyser.