Large-volume liquid chromatographic trace-enrichment system for environmental analysis,

H. Lingeman, U.A.T. Brinkman, J. Slobodník

Research output: Contribution to JournalArticleAcademicpeer-review


The fully automated on-line trace enrichment of 27 (polar) pollutants, using volumes of up to 1,000 mL, on a polymeric precolumn followed by liquid chromatography - diode-array detection has been studied. Various parameters influencing the reproducibility of these large volume injections like breakthrough volume, precolumn capacity, matrix effects, and enrichment flow rate are discussed. The relative standard deviation of the recoveries after enrichment of 25-500 mL of sample is 1-20 %. Enrichment flow rates up to 15 mL min
Original languageEnglish
Pages (from-to)141-149
Publication statusPublished - 1999


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