Difference between revisions of "FAQ AMS Glossary"

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=== Glossary ===
 
=== Glossary ===
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== AMS glossary (beta) ==
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=== Important Notes ===
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This glossary of terms typically used by the AMS community is a work in progress - so is by no means complete or comprehensive. For now, we'll keep it alphabetical, but this may be changed based on user feed-back. Please continue to add and edit!
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=== Glossary ===
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AMS: Aerosol Mass Spectrometer
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APES:
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BBOA: Biomass Burning Organic Aerosol
  
 
f_44: the fraction of the organic signal that is observed at m/z = 44
 
f_44: the fraction of the organic signal that is observed at m/z = 44
  
APES:
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fragments: a vaporized molecule is ionized in the AMS to a series of ions, which are then detected by either a quadrupole or time-of-flight mass spectrometer; the resulting ions are referred to as 'fragments'
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HOA: Hydrocarbon-like Organic Aerosol
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HR: High Resolution (as opposed to UMR, typically referring to either the High Resolution Time of Flight Aerosol Mass Spectrometer, or to the data derived from that instrument)
  
 
Non-refractory species: chemical components of aerosol that are volatilized in the AMS, and are observed in the "Difference spectrum"
 
Non-refractory species: chemical components of aerosol that are volatilized in the AMS, and are observed in the "Difference spectrum"
  
PET: PMF Evaluation Tool ; software for factor analysis of AMS data
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OOA: Oxidized Organic Aerosol
  
 
PIKA:
 
PIKA:
  
Refractory species: chemical components of aerosol that are not volatile enough to vaporize in the AMS, and thus are never observed by the instrument. Examples include ...
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Q:
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Refractory species: chemical components of aerosol that are not volatile enough to vaporize in the AMS, and thus are never observed by the instrument
  
 
Semi-refractory signals: chemical components of aerosol that are relatively less volatile, and only slowly vaporize in the AMS. Functionally, they are observed in both the the Closed and Open signals (time-scale for vaporization is slow). Examples include Pb (lead) and possibly NaCl
 
Semi-refractory signals: chemical components of aerosol that are relatively less volatile, and only slowly vaporize in the AMS. Functionally, they are observed in both the the Closed and Open signals (time-scale for vaporization is slow). Examples include Pb (lead) and possibly NaCl
  
SQUIRREL:
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SQUIRREL:  
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UMR: Unit Mass Resolution (as opposed to HR: ie, signal observed at m/z 28 is UMR, whereas HR data typically shows two peaks, one from N2+ and another from CO+)

Revision as of 15:04, 23 February 2010

AMS glossary (beta)

Important Notes

This glossary of terms typically used by the AMS community is a work in progress - so is by no means complete or comprehensive. For now, we'll keep it alphabetical, but this may be changed based on user feed-back. Please continue to add and edit!

Glossary

AMS glossary (beta)

Important Notes

This glossary of terms typically used by the AMS community is a work in progress - so is by no means complete or comprehensive. For now, we'll keep it alphabetical, but this may be changed based on user feed-back. Please continue to add and edit!

Glossary

AMS: Aerosol Mass Spectrometer

APES:

BBOA: Biomass Burning Organic Aerosol

f_44: the fraction of the organic signal that is observed at m/z = 44

fragments: a vaporized molecule is ionized in the AMS to a series of ions, which are then detected by either a quadrupole or time-of-flight mass spectrometer; the resulting ions are referred to as 'fragments'

HOA: Hydrocarbon-like Organic Aerosol

HR: High Resolution (as opposed to UMR, typically referring to either the High Resolution Time of Flight Aerosol Mass Spectrometer, or to the data derived from that instrument)

Non-refractory species: chemical components of aerosol that are volatilized in the AMS, and are observed in the "Difference spectrum"

OOA: Oxidized Organic Aerosol

PIKA:

Q:

Refractory species: chemical components of aerosol that are not volatile enough to vaporize in the AMS, and thus are never observed by the instrument

Semi-refractory signals: chemical components of aerosol that are relatively less volatile, and only slowly vaporize in the AMS. Functionally, they are observed in both the the Closed and Open signals (time-scale for vaporization is slow). Examples include Pb (lead) and possibly NaCl

SQUIRREL:

UMR: Unit Mass Resolution (as opposed to HR: ie, signal observed at m/z 28 is UMR, whereas HR data typically shows two peaks, one from N2+ and another from CO+)