The objective of the injector is to transfer the whole sample or a predetermined fraction of the sample quantitatively to the column in the narrowest possible band. The first part of this objective, a quantitative transfer of all components, is not always attained by every injection method. Sample discrimination effects which are well known from gas chromatography can be found in SFC as well, but this does not necessarily constitute a problem, as long as the user is aware of the possible appearance of such phenomena. The second part of the objective, transfer in a narrow band, is a process which is affected by numerous factors, such as diffusion, linear velocity, temperature, solvents, loading and mixing efficiency. Some of these factors also influence the first part of the objective, the yield of the transfer process.


Supercritical Fluid Extraction Injection Technique Sample Loop Split Injection Dynamic Extraction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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© Springer-Verlag Berlin Heidelberg 1992

Authors and Affiliations

  • Tyge Greibrokk

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