Cryogenic trap

{
  "id": "MLC-T-CHM-002743",
  "term": "Cryogenic trap",
  "field": "Chemistry",
  "definition": "A device used to condense and collect volatile or semi-volatile compounds from a gas stream by cooling a section of tubing or a packed column to very low temperatures. This technique is often employed for preconcentration of analytes before their introduction into a gas chromatograph. Common coolants include liquid nitrogen or carbon dioxide.",
  "subject": "Analytical Chemistry",
  "references": [
    "PAC, 2016, 88, 517. 'Glossary of terms used in extraction (IUPAC Recommendations 2016)' on page 527 (https://doi.org/10.1515/pac-2015-0903)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/cryogenic-trap/"
}