Title: concentration in experimental surface
Long Title: IUPAC Gold Book - concentration in experimental surface
DOI: 10.1351/goldbook.C01229
Status: current

Definition
The amount of the material of interest divided by the total amount of substances in the volume of interest. Concentration may be defined in terms of numbers of atoms (particles) (\(\rm{ppma}\)) or in terms of weight (\(\frac{\unicode[Times]{x3BC}\rm{g}}{\rm{g}}\)).

Related Term
- weight: https://goldbook.iupac.org//terms/view/W06668

Source
- PAC, 1979, 51, 2243. 'General aspects of trace analytical methods—IV. Recommendations for nomenclature, standard procedures and reporting of experimental data for surface analysis techniques' on page 2246 (https://doi.org/10.1351/pac197951112243)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/C01229/html
- json: https://goldbook.iupac.org/terms/view/C01229/json
- xml: https://goldbook.iupac.org/terms/view/C01229/xml

Citation: Citation: 'concentration in experimental surface' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.C01229
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Accessed: 2026-05-17T21:38:17+00:00