Mass spectrometry

{
  "id": "MLC-T-ENV-016626",
  "term": "Mass spectrometry",
  "field": "Environment",
  "term_source": "Mass Spectrometry",
  "definition": "1. Mass spectrometry is a method of chemical analysis in which the substance to be analyzed is heated and placed in a vacuum. The resulting vapor is exposed to a beam of electrons that causes ionization to occur, either of the molecules or their fragments. The ionized atoms are separated according to their mass and can be identified on that basis.\n\n2. Method of chemical analysis in which the substance to be analyzed is heated and placed in a vacuum. The resulting vapor is exposed to a beam of electrons that causes ionization to occur, either of the molecules or their fragments. The ionized atoms are separated according to their mass and can be identified on that basis.\n\n3. A method used to determine the masses of atoms or molecules in which an electrical charge is placed on the molecule and the resulting ions are separated by their mass to charge ratio.\n\n4. An instrument used to identify chemicals in a substance by their mass and charge.\n\n5. An analytical technique wherein ions are separate according to their ratio of charge to mass. From the mass spectrum produced, the atomic weight of the particle can be deduced.\n\n6. Method of chemical analysis in which the substance to be analyzed is heated and placed in a vacuum. The resulting vapor is exposed to a beam of electrons that causes ionization to occur, either of the molecules or their fragments. The ionized atoms are separatedaccording to their mass and can be identified on that basis.\n\n7. An analytical technique where ions are separated according to their ratio of charge to mass. The atomic weight of the particle can be obtained from the mass spectrum produced.",
  "abbreviation": "MS",
  "subject": "Research",
  "references": [
    "Waste and Cleanup Risk Assessment Glossary",
    "Glossary: Study of the Potential Impacts of Hydraulic Fracturing on Drinking Water Resources",
    "EPA Potential Implications of Genomics for Regulatory and Risk Assessment Applications at EPA (Glossary): EPA Science Policy Council at http://www.epa.gov/osa/pdfs/EPA-Genomics-White-Paper.pdf",
    "U.S. Department of Energy, Human Genome Project Information, Genome Glossary",
    "National Cancer Institute Thesaurus",
    "EPA Study of the Potential Impacts of Hydraulic Fracturing on Drinking Water Resources: Progress Report at http://www.epa.gov/hfstudy/pdfs/hf-report20121214.pdf",
    "NOAA Coral Reef Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/mass-spectrometry/"
}