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Lower Limit of Dectection in Parts per Trillion by Volume
  Helium Argon Nitrogen Hydrogen Oxygen Air Ammonia
Moisture 100 100 100 100 100 100 1000
Carbon Monoxide 100 100 100 100 100 100 x
Carbon Dioxide 10 10 10 100 100 1 1000
Methane 10 10 10 10 10 10 x
Oxygen 10 10 10 10 NA NA 100
Hydrogen 100 100 100 NA 100 100 x
Hydrocarbons 10 10 10 10 10 10 x
Acetone 1 1 1 1 1 1 1000
Acetic Acid 1 1 1 11 1 1 100
Nitric Acid 10 10 10 10 10 10 1000
Sulfur Dioxide 1 1 1 1 1 1 100
Dimethyl Sulfide 1 1 1 1 1 1 x
Dimethl Sulfoxide 1 1 1 1 1 1 x
Ammonia 1 1 1 1 1 1 NA
               
               
Analytes

Oxygen

Moisture

Nitrogen

Carbon Dioxide

Carbon Monoxide

Methane

Nonmethane Hydrocarbons

Sulfur Dioxide

Sulfides

Metals
Gases

Ar, N2,He,H2, etc.

Ammonia
Solids and Liquids
Inss\trumentation

APIMS

GC/MS

GC/FID/NPD

GC/FPD

GC/SCD

ICP/MS

IC