Electrochemical O2 Sensors: Background Gas Compatibility

Electrochemical O2 Sensors: Background Gas Compatibility


Analytical Industries’ Oxygen Analyzers and Sensors are based on the galvanic measurement principle. This makes them suitable for the measurement of O2 in a variety of gases from percentage levels to trace oxygen (PPM or PPB). This flexibility and dynamic range of operation opens up a wide range of potential applications for our oxygen sensors. It is important to check the suitability of the electrochemical sensor against the other components in the gas stream it will be used in.
This table is designed to help you select the right AII sensor for your needs.

Chemical Name Formula GPR/PSR Sensors XLT Sensors
Acetic Acid (vapor) H3COOH Not Recommended Suitable; requires filter, condenses at room temp
Acetone (vapor) (CH3)2CO Suitable; requires filter, condenses at room temp Suitable; requires filter, condenses at room temp
Acetylene HCCH Suitable Suitable
Acrylonitrile C3H3N Suitable Suitable
Air N2+O2+Ar Suitable Suitable
Ammonia NH3 Limited use 2-3 hrs daily; flush with N2 Not Recommended
Argon Ar Suitable Suitable
Arsine AsH3 Not Recommended Not Recommended
Butadiene (limits life) C4H6 Limited life 3-4 months Not Recommended
Butane C4H10 Suitable Suitable
Carbon Dioxide CO2 Suitable < 5000 PPM CO2 Suitable
Carbon Disulfide CS2 Suitable < 1000 PPM CS2 Suitable
Carbon Monoxide CO Suitable Suitable
Chlorinated Hydrocarbons C+H+Cl Suitable Suitable
Chlorine Cl2 Not Recommended Not Recommended
Chloro-fluorocarbons H+F+Cl+C Suitable Suitable
Ethyl Acetate C4H8O2 Suitable Suitable
Ethylene C2H4 Suitable Suitable
Fluorine F2 Not Recommended Not Recommended
Formaldehyde (vapors) CH2O Suitable; requires filter, condenses at room temp Suitable; requires filter, condenses at room temp
Helium He Suitable Not Recommended
Heptanes C7H16 Suitable; requires filter, condenses at room temp Suitable; requires filter, condenses at room temp
Hexanes (limits life) C6H14 Suitable; requires filter, condenses at room temp Suitable; requires filter, condenses at room temp
Hydrocarbons H+C Suitable Suitable
Hydrochloric Acid (vapors) HCl Not Recommended Suitable; requires filter, condenses at room temp
Hydrogen H2 Suitable Not Recommended
Hydrogen Cynide HCN Suitable Suitable
Hydrogen Fluoride HF Not Recommended Not Recommended
Hydrogen Sulfide H2S Suitable; remove H2S > 10 PPM Suitable; remove H2S > 10 PPM
Isopropyl Acetate C5H10O2 Suitable Suitable
Isopropyl Alcohol (IPA) C6H8O Suitable; requires filter, condenses at room temp Suitable; requires filter, condenses at room temp
Methane CH4 Suitable Suitable
Methanol EtOH (vapors) CH3OH Suitable; requires filter, condenses at room temp Suitable; requires filter, condenses at room temp
Methanol MeOH (vapors) CH4O Suitable; requires filter, condenses at room temp Suitable; requires filter, condenses at room temp
Methyl Iodide (vapors) CH3I Suitable; requires filter, condenses at room temp Suitable; requires filter, condenses at room temp
MTBE (vapors) C5H12O Suitable; requires filter, condenses at room temp Suitable; requires filter, condenses at room temp
Nitric Oxide NO Low PPM NO concentrations only PPM NO concentrations only
Nitrogen N2 Suitable Suitable
Nitrogen Dioxide NO2 Not Recommended Not Recommended
Nitrous Oxide N2O Low PPM NO concentrations only Low PPM NO concentrations only
NOx NO, NO2 Low PPM NOX concentrations only Low PPM NOX concentrations only
Octoflurocyclobutane C4F8 Suitable Suitable
Ozone O3 Not Recommended Not Recommended
Pentane (vapors) C5H12 Suitable; requires filter, condenses at room temp Suitable; requires filter, condenses at room temp
Phosgene CC12O Not Recommended Not Recommended
Phosphane PH3 Not Recommended Not Recommended
Propane C3H8 Suitable Suitable
Propelene Aldehyde (vapors) C3H4O Suitable; requires filter, condenses at room temp Suitable; requires filter, condenses at room temp
Propionic Acid (vapors) C3H6O2 Not Recommended Suitable; requires filter, condenses at room temp
Propylene C3H6 Suitable Suitable
Silane SiH4 Not Recommended Not Recommended
Styrene C8H8 Suitable Suitable
Sufuric Acid (vapors) H2SO4 Not Recommended Suitable; remove H2SO4 > 10 PPM
Sulfur Dioxide SO2 Low PPM SO2 concentrations only Low PPM SO2 concentrations only
Sulfur Hexafluride (limits life) SF6 Suitable Suitable
Tetrafuoromethane (vapors) CF4 Suitable; requires filter, condenses at room temp Suitable; requires filter, condenses at room temp
Tetrahydrofurane (vapors) C4H8O Suitable; requires filter, condenses at room temp Suitable; requires filter, condenses at room temp
Toluene (vapors) C7H8 Suitable; requires filter, condenses at room temp Suitable; requires filter, condenses at room temp
Trimethylaluminum (vapors) (CH3)6A12 Suitable; requires filter, condenses at room temp Suitable; requires filter, condenses at room temp
Turpene (vapors, limits life) (C5H8)n Remove low concentrations; otherwise Not Recommended Remove low concentrations; otherwise Not Recommended
Vinyl Acetate (vapors) C4H6O2 Suitable; requires filter, condenses at room temp Suitable; requires filter, condenses at room temp
Vinyl Chloride (vapors) C2H3Cl Suitable Suitable
 
 
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Analytical Industries Inc.
2855 Metropolitan Place,
Pomona, CA, 91767
USA
909-392-6900