absolute preconcentration

in trace analysis
https://doi.org/10.1351/goldbook.A00027
An operation (process) as the result of which microcomponents are transferred from the sample of larger mass into the sample of smaller mass, so that the concentration of the microcomponents is increased. Examples include the decrease in solvent volume during distillation or @E02227@, and the transfer of microcomponents from an aqueous solution into a smaller volume of organic solvent by @E02301@.
Source:
PAC, 1979, 51, 1195. (Separation and Preconcentration of Trace Substances. I-Preconcentration for Inorganic Trace Analysis) on page 1197 [Terms] [Paper]
Citation: 'absolute preconcentration' in IUPAC Compendium of Chemical Terminology, 3rd ed. International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. https://doi.org/10.1351/goldbook.A00027 RIS BibTex EndNote
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Last revised: February 24, 2014