Programmable flow extraction

{
  "id": "MLC-T-CHM-013436",
  "term": "Programmable flow extraction",
  "field": "Chemistry",
  "definition": "A flow-based extraction approach in which a pump controls multi-directional flow, including stopped flow, of the sample or the extractant through an extraction device. The program sets the flow direction, rate and stop periods, so liquids can be moved back and forth through the same sorbent or membrane. It is the principle behind sequential injection systems, which use a syringe pump and a selection valve.",
  "subject": "Analytical Chemistry",
  "references": [
    "PAC, 2016, 88, 517. 'Glossary of terms used in extraction (IUPAC Recommendations 2016)' on page 555 (https://doi.org/10.1515/pac-2015-0903)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/programmable-flow-extraction/"
}