@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix ns0: <http://gcmd.gsfc.nasa.gov/kms#> .

<https://gcmd.earthdata.nasa.gov/kms/concept/ecd58f82-8f96-45e1-9547-dd4a02291bd9>
  skos:prefLabel "Spectrometers/Radiometers"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/195f7965-459d-49e4-aad1-b1f23fa035da> .

<https://gcmd.earthdata.nasa.gov/kms/concept/195f7965-459d-49e4-aad1-b1f23fa035da>
  skos:changeNote """2020-04-16 07:33:35.0 [tstevens] Insert Concept 
add broader relation (TD-GC-MS [195f7965-459d-49e4-aad1-b1f23fa035da,559965] - Spectrometers/Radiometers [ecd58f82-8f96-45e1-9547-dd4a02291bd9,546159]); 
""", """2020-04-16 07:37:24.0 [tstevens]  
insert AltLabel (id: null
category: primary
text: Thermal Desoprtion Gas Chromatograph Mass Spectrometer
language code: en); 
insert Definition (id: null
text: Thermal desorption (TD) provides unique analyses in applications for forensics, defense, and general emissions testing.

Instrument Features:

• Quantitative sample re-collection of all the split flows enables repeat analysis of critical samples, easy method validation, and overcomes the one-shot limitation of conventional TD systems
•  Electronic tube tagging (TubeTAG™): RFID tube tags available for industry standard sorbent tubes
•  Diffusion locking (DiffLok™) for enhanced sample integrity and robust (mechanically simple) automation
•  Patented inert valving for compatibility with every TD application on a single analytical platform - ultra-volatiles, semi-volatiles (up to n-C40) plus reactive species - mercaptans, CS gas, etc. - all on one TD system
•  Automated internal standard introduction onto blank as well as sampled tubes
•  Electronic pneumatics control (EPC) of carrier gas through the thermal desorber ensures consistent compound retention time independent of split flow
•  Electrically-cooled sorbent trapping with uniquely fast trap heating rates for splitless capillary GC operation and optimum sensitivity without risk of ice formation
•  Off-line conditioning for multiple tubes without the need to blank-off unused tube connections
•  Specialist sorbent tubes: Certified reference standards, SafeLok™ tubes, Silcosteel tubes
•  A range of unique sampling tools for measuring volatile and semi-volatile organics in challenging matrices: liquids/solids/emulsions, breath, in-situ soil, polymers, natural products, construction products, etc
language code: en); 
""" ;
  ns0:altLabel [ ] ;
  skos:definition """Thermal desorption (TD) provides unique analyses in applications for forensics, defense, and general emissions testing.

Instrument Features:

• Quantitative sample re-collection of all the split flows enables repeat analysis of critical samples, easy method validation, and overcomes the one-shot limitation of conventional TD systems
•  Electronic tube tagging (TubeTAG™): RFID tube tags available for industry standard sorbent tubes
•  Diffusion locking (DiffLok™) for enhanced sample integrity and robust (mechanically simple) automation
•  Patented inert valving for compatibility with every TD application on a single analytical platform - ultra-volatiles, semi-volatiles (up to n-C40) plus reactive species - mercaptans, CS gas, etc. - all on one TD system
•  Automated internal standard introduction onto blank as well as sampled tubes
•  Electronic pneumatics control (EPC) of carrier gas through the thermal desorber ensures consistent compound retention time independent of split flow
•  Electrically-cooled sorbent trapping with uniquely fast trap heating rates for splitless capillary GC operation and optimum sensitivity without risk of ice formation
•  Off-line conditioning for multiple tubes without the need to blank-off unused tube connections
•  Specialist sorbent tubes: Certified reference standards, SafeLok™ tubes, Silcosteel tubes
•  A range of unique sampling tools for measuring volatile and semi-volatile organics in challenging matrices: liquids/solids/emulsions, breath, in-situ soil, polymers, natural products, construction products, etc"""@en ;
  skos:prefLabel "TD-GC-MS"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/instruments> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/ecd58f82-8f96-45e1-9547-dd4a02291bd9> ;
  a skos:Concept .