Segment

{
  "id": "MLC-T-CHM-010660",
  "term": "Segment",
  "field": "Chemistry",
  "definition": "A defined, discrete portion of a material being sampled, or a discrete volume of liquid within a flowing stream in automated analysis. In segmented flow analysis, a segment of sample is separated from other segments by air bubbles to prevent dispersion and cross-contamination as it moves through the system towards a detector. This contrasts with flow injection analysis, where the sample plug is injected directly into an unsegmented carrier stream and dispersion is controlled by flow dynamics.",
  "subject": "Analytical Chemistry",
  "references": [
    "PAC, 1990, 62, 1193. 'Nomenclature for sampling in analytical chemistry (Recommendations 1990)' on page 1202 (https://doi.org/10.1351/pac199062061193)",
    "PAC, 1989, 61, 1657. 'Nomenclature for automated and mechanised analysis (Recommendations 1989)' on page 1661 (https://doi.org/10.1351/pac198961091657)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/segment/"
}