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Toxic Industrial Chemicals (TICs) Analyser

Toxic Industrial Chemicals (TICs) Analyser

Monitoring of Toxic Industrial Chemicals (TICs)

Toxic industrial chemicals (TICs) or materials (TIMs) are substances that exhibit harmful effects on humans but commonly used in manufacturing facilities, pharmaceutical chemical plants. Exposure to those chemicals are seriously harmful especially after multiple low-level exposures. 

With its GC-IMS device, G.A.S. developed a highly selective and sensitive measuring system for rapid monitoring of dimethyl sulfate (DMSO4), toluene diisocyanate (TDI) and trans-4-methyl cyclohexyl isocyanate (4-MCI) in industrial areas.

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Descripción detallada


The instrument continuously samples the ambient air, which shall monitored. The run time could decreased to a value of 2 min including a GC separation to avoid matrix effects, also including a cleaning step of the instrument’s gas touching parts in order to avoid carry-over. The measurement devices calibrated for monitoring of DMSO4 and Isocyanate species down to the low ppbv range depending on customers’ needs.

Dimethyl Sulfate
Dimethyl sulfate (DMSO4) commonly used as a reagent for the methylation of phenoles, amines, and thiols. In industry, DMSO4 is preferred, compared to other methylating agents, because of its low cost and high reactivity. It’s known that DMSO4 is carcinogenic, mutagenic, highly poisonous, corrosive, environmentally hazardous and volatile. The substance can be absorbed through skin, mucous membranes, and gastrointestinal tract.


Due to their electrophilic properties, isocyanates are reactive towards many nucleophilic substances like alcohols, amines or even water. Several isocyanates are extremely poisoning and exposure can result in lung edema, emphysema, hemorrhages, bronchial pneumonia and death, e.g.



Technical Specification of DMSO₄ Monitoring

Ionisation method: ß-radiation

Source: Tritium (3H)

Activity: 300 MBq, below the exemption limit of 1 GBq EURATOM guideline, no licence required

Column type: Multi Capillary Column (MCC) or Capillary Column (CC) –various stationary phases available

Sampling: Integrated pump plus heated electrical 6-port-valve (stainless steel), gas tight loop (1-10 mL)

Detection limit: Typically low ppbv-range

Dynamic range: 1-3 orders of magnitude

Display: Touchscreen 6.4”TFT

Communication: RS232, USB, Ethernet

Power: 100 –240 V AC, 50-60 Hz (external)

             24 V DC / 8.3A, XLR-connector (internal)

Power consumption: < 200 Watt

Dimensions: 449 x 435 x 177 mm (WxDxH)

Weight: 15,5 kg or 34,2 lb

Housing: 19” compatible, IP 20 enclosure, CE Marking


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