Learn about our AROMA analyzers


AROMA-TOX has the broadest compound coverage in the AROMA family. The innovative dual-laser system, allows for the detection of hydrogen sulfide (H2S), hydrogen cyanide (HCN), carbon monoxide (CO) and amine in addition to methane, BTEX and other VOC measurements detected with the AROMA-VOC. Ideal for deployments around oil refineries and other industrial settings.

AROMA-TOX operates in two modes: RapidScan and LabScan. In RapidScan, the direct spectroscopy mode, the AROMA-TOX can detect H2S, methane, and HCN down to 1 ppbv, 2 ppbv, and 10 ppbv in 5 seconds.  LabScan mode utilizes a thermal desorption separation before analysis by the CRDS core enabling it to reach lower detection limits.  AROMA-TOX has a demonstrated method detection limit for benzene of down to 2 pptv for an 8 minute run. 

Entanglement Technologies’ AROMA instrumentation can be used for long-term, unattended, fixed-site monitoring or in a mobile platform. AROMA was designed to be used by technical and non-technical personnel with low system requirements for implementation.

  • Trichloroethylene
  • Isoprene
  • Benzene
  • 1,3-butadiene
  • 1,2-dichloroethylene
  • Styrene
  • Toluene
  • 1,1,2-Trichloroethane
  • Ethylbenzene
  • Chlorobenzene
  • Xylene (mixed)
  • Acrolein
  • Ethylene Oxide
  • Methane
  • Aromatic Equivalent
  • Diene Equivalent
  • Chlorinated Equivalent
  • Alkane Equivalent
  • Water
  • Carbon Dioxide
  • Hydrogen Sulfide
  • Hydrogen Cyanide
  • Carbon Monoxide
Analysis Time < 10 Minutes
Sampling Duration 1-45 Minutes
Calibration As required by testing protocol
Data Reporting Attached PC, WAN gateway compatible
Data Format options json, csv, kml
Global Positioning System Built-In
Sample Volume Range 5-5000 scc
Sampling Flow Range 2-500 sccm
Response Time 2-10 seconds
Molecule Class labels Aromatic, Diene, Chlorinated
Speciated Molecules Methane, Water, H₂S, HCN, CO, Ethylene Oxide
Typical Sensitivity down to 1 ppbv
H₂S LOD 1 ppbv
H₂S Precision Greater of 1 ppbv or 10% of reading
HCN LOD 10 ppbv
HCN Precision Greater of 10 ppbv or 10% of reading
Ethylene Oxide LOD 10 ppbv
Ethylene Oxide Precision Greater of 10 ppbv or 10% of reading
Methane LOD 2 ppbv
Baseline Drift < 3e-10 cm-1 /hour
Data Reporting Attached PC, WAN gateway compatible
Gas Connections Swagelok® 1/8”
Analyzer Approximate Dimensions 18” w x 20” h x 23” d
Installation Benchtop or 19” Rack
Analyzer Weight < 50 kg (110 lbs)
Power Consumption 175W ave, 120 W Standby, Peak 450W (< 10 seconds)
Power Source 105-120 VAC, 60 Hz
Warm-up Time < 45 minutes
Temperature Range 5˚C – 30˚C
Humidity Range 5%-85% RH, noncondensing
Power and Gas Connections Front Panel
Ultrapure N2 consumption < 5 standard L/h
Sorbent Collector Lifetime > 5000 measurements
Analyte Focuser Lifetime > 5000 measurements
Front-end Filter (for dust/smoke) Condition dependent

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