{"term":{"id":"05559","title":"selective preconcentration","longtitle":"IUPAC Gold Book - selective preconcentration","doi":"10.1351\/goldbook.S05559","code":"S05559","status":"current","definitions":[{"id":1,"text":"An operation (process) as a result of which microcomponents are selectively isolated from a sample. It is used when the simultaneous presence of several components in the concentrate may distort the results of analysis. Selective preconcentration usually is achieved by isolation of the microcomponent to be determined.","contexts":[],"sources":["PAC, 1979, 51, 1195. 'Separation and Preconcentration of Trace Substances. I-Preconcentration for Inorganic Trace Analysis' on page 1197 (https:\/\/doi.org\/10.1351\/pac197951051195)"]}],"altoutputs":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/S05559\/html","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/S05559\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/S05559\/plain"},"citation":"Citation: 'selective preconcentration' 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.S05559","license":"The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https:\/\/creativecommons.org\/licenses\/by-sa\/4.0\/) for individual terms.","collection":"If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org .","disclaimer":"The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.","accessed":"2026-07-28T17:37:56+00:00"}}