airmoTWA

Turnkey solution for continuous analysis of volatile chemical compounds in clean air room

  • Model: airmoTWA
  • Manufacturer: Chromatotec

AirmoTWA is a combination of two robust instruments, airmoVOC expert and Det QMS, which allows quantification and identification of chemicals from % to low ppt levels (VOCs, organosilane, solvents). The complementarity of the instruments allows the monitoring of low concentrations ppt or low ppb level in 30 minutes, fast detection in 6 minutes at ppb or low ppm, and/or the very fast detection in few seconds at ppm level with direct MS mode. airmoTWA is delivered with gas generators, calibration system (in compliance with ISO 17025 for Benzene) and multiplexer to be fully autonomous and automatic.

Category:

Chromatotec® has introduced a groundbreaking innovation: the first TRAP-GC-FID/MS system designed for continuous monitoring of volatile organic compounds (VOCs), inorganic molecules, and permanent gases. This system combines the proven trap, thermal desorption, and separation technologies used in airmoVOC analyzers (mCERTS approved) with the added power of a mass spectrometer (MS).

The combined FID (Flame Ionization Detector) and MS provide unparalleled accuracy and confidence in VOC analysis. The FID delivers precise quantification, while the MS simultaneously verifies compound identification using Chromatotec’s extensive library.

ồng độ Benzen do MS và FID đo được

Figure 1 demonstrates the near-identical Benzene concentration measurements achieved by both detectors (mean difference of only 0.06 ppb).

The MS takes over VOC quantification when the FID signal saturates. This robust system quantifies and identifies VOCs across a vast range, from ppt levels to percent concentrations. The MS also handles quantification and identification of permanent gases (O2, N2, CO2, Ar, He, etc.) and inorganic molecules. With this system, trends in VOCs, halogenated compounds, and permanent gas concentrations are automatically generated.

Chromatotec’s Vistachrom software ensures all data is time-stamped and recorded on an industrial computer. The system boasts complete autonomy thanks to integrated gas generators (H2 and air). Additionally, remote control is enabled via internet connection. Automatic calibration of both FID and MS is achieved through a built-in calibration system.

This innovative system has proven its worth in process monitoring and optimization. It empowers non-specialists to access high-level analytical information. Furthermore, the system is cost-effective, mCERTS approved, and designed for 24/7 operation for over 3 months without requiring operator intervention.

Options:

  • On-line results are transmitted via a MODBUS / JBUS or MGS1 communication protocol
  • Analog output 4-20 mA or 0-10 V
  • Multiple streams selector
  • Purge and Trap for liquid samples

Gas analysis with TRAP GC/FID/QMS:

Analysis of VOC and other types of gas (D3, D4, D5, organosilane…)
Detection limit:
  • Benzene ≤ 10 ppt
Detection range:
  • ppt to ppb
  • 0.5 to 45 μg/m3 (mCerts tests on Benzene and VOC)
Relative Standard Deviation:  

  • < 0.3 % over 48h (RT)
  • < 3 % over 48 h (Conc)
Cycle time:
  • 30 minutes (for very low concentrations ppt or low ppb)
  • 6 minutes (for fast analysis) ppb to low ppm
Analysis mode:
  • GC = FID
  • MS: SCAN / MID / MCD

Gas analysis with QMS:

  • Analysis of VOC and other types of gas (NH3, CO2…)
Detection limit:
  • Benzene 500 ppb
Detection range:
  • 500 ppb to %
Analysis mode
  • SCAN
  • MID / MCD

Results:

  • Data storage (timestamp)
  • 4-20mA current output (option)
  • MODBUS / JBUS or MGS1 communication protocol (option)

Gas supply:

  • H2 (FID and carrier gas):30 ml/min (inlet 2 bars; 1/16’’ double ferrule)
  • Air (FID): 180 ml/min (inlet 2 bars ; 1/8’’ double ferrule)
  • Sample inlet (vacuum pump) ¼’’ double ferrule
  • Pneumatic valve 90ml/commutation

Power supply:

  • Main (230V / 115V 50 Hz/60Hz)

Electrical consumption:

  • 1730 watt maximum

Dimensions:

  • 19’’ cabinet: 18U to 38U
  • Width: 600 mm
  • Depth: 800 mm
  • Height: from 1070 mm to 1885 mm

airmoTWA

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