Selective preconcentration

{
  "id": "MLC-T-CHM-010680",
  "term": "Selective preconcentration",
  "field": "Chemistry",
  "definition": "A process that increases the concentration of a specific analyte or group of analytes from a larger volume of sample, while simultaneously reducing the concentration of interfering components. This technique enhances the detection limits for trace substances by isolating them from the matrix. It is a common preliminary step in many analytical procedures.",
  "subject": "Analytical Chemistry",
  "references": [
    "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)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/selective-preconcentration/"
}