AirToxic Chromatotec | BTEX / VOC Analyser

The airTOXIC by Chromatotec is a GC-PID, MCERTS-certified analyzer for the continuous monitoring of BTEX in air, water, and soil. It uses a six-way valve, an absorbent trap, and a metallic capillary column. The instrument is equipped with a benzene permeation bench for in-situ automatic calibrations and can be used for emissions monitoring with a dilution system.

The airTOXIC gas analyzer features a rotary valve with a single absorbent trap and a 30-meter, 0.28 mm metallic identification column. It achieves a minimum detection level as low as 10 ppt for benzene or 1,3-butadiene (A76022) in ambient air. Its main characteristics include miniaturization, sensitivity, mobility, and flexibility. All components, from sampling to data storage, are integrated into a 5U 19″ rack.

• Analyzed gases: BTEX (benzene, toluene, ethylbenzene, xylenes: ortho, meta, para, cyclohexane, styrene, 1,3-butadiene)
• Measurement ranges:
  • 3.25 to 3250 μg/m³ = 0-1000 ppb
  • 0.32 to 325 μg/m³ = 0-100 ppb
  • 0.032 to 32.5 μg/m³ = 0-10 ppb
• Sensitivity: ≤ 0.01 ppb = 0.0325 μg/m³
• Accuracy:
  • < 0.3% over 48 hours (retention time)
  • < 2% over 48 hours at 1 ppb (concentration)
• Operating temperature: 10 to 35 °C in a climate-controlled room
• Cycle time: 15, 20, or 30 minutes
• Gas supply:
  • Nitrogen: 4 ml/min (input 3 bar; swagelok 1/8 inch)
  • Air or nitrogen for CALIB: 50 ml/min continuous and 180 ml/min during CALIB mode
• Sample volume: 20 to 400 ml or more (programmable)
• Data recording: Yes
• Display: 10″ color LCD screen
• Software: Integrated Windows 7
• Communication: 4-20 mA output, 4 USB ports, 2 RS-232 ports, MODBUS RTU / JBUS
• Power supply: 230V / 50Hz or 115V / 60Hz
• Dimensions: 222 x 482 x 600 mm
• Weight: 22 kg

This instrument is perfectly suited for accurate, reliable, and continuous BTEX monitoring in various environments.