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Principle
The airmoVOC WMS uses a valve with a sample trap.
It also features a metallic capillary column.
- Miniaturization, sensitivity, mobility and flexibility are its main features.
- Everything from the sample port up to the data storage is integrated in a wall mounted box.
- Uninterrupted sampling with pre-concentration on absorbent tube
- Gas chromatograph with metallic column with programmable temperature gradient oven.
Pressure control of the carrier gas by piezo-valve.
- One week tested after production for quality control.
Vistachrom software enables the user to visualize and store data on a PC.
Furthermore it provides comfortable utilities to recalculate, calibrate and export data and to set-up measurement.
The software allows the calculation of retention time, area, mass or concentration profiles.
Purge: for on line analytic instrument
• Based on EPA 502.2 Method
• 5 ml of water sample as standard or optional 25 ml sparger
• Purge with inert gas: ultra pure N2 (Ultra High Purity) – 40 ml/min
• Sampling time: 11 minutes
• Inlet calibration is easy to perform thanks to a low sample volume required only 5ml of water
• Dead volume < 15 mL (volume between water and trap)
• Bubbles with a diameter < 3 mm at the origin of the frit
• Automatic rinse
Example of application
| All VOC below can be analysed | N° CAS |
| 1,2-Dichloroethane | 107-06-2 |
| Benzene | 71-43-2 |
| 1,2-Dichloropropane | 78-87-5 |
| Trichloroethylene | 79-01.6 |
| Toluene | 108-88-3 |
| Tetrachloroethylene | 127-18-4 |
| Chlorobenzene | 108-90-7 |
| Ethylbenzene | 100-41-4 |
| * m-Xylene | 108-38-3 |
| * p-Xylene | 106-42-3 |
| Styrene | 100-42-5 |
| All VOC below can be analysed | N° CAS |
| o-Xylene | 95-47-6 |
| Isopropylbenzene | 98-82-2 |
| 1,3,5-Trimethylbenzene | 108-67-8 |
| 1,2,4-Trimethylbenzene 95-63-6 | 95-63-6 |
| 1,3-Dichlorobenzene | 541-73-1 |
| 1,4-Dichlorobenzene | 106-46-7 |
| 1,2-Dichlorobenzene | 95-50-1 |
| 1,2,4-Trichlorobenzene | 120-82-1 |
| 1,2,3-Trichlorobenzene | 87-61-6 |
| Hexachloro-1,3-butadiene | 87-68-3 |
| *SUM of M+P Xylene | |
Options
- DET QMS for online GCMS
- airmoVOC BTEX expert 1 ppt LDL
- Automatic validation and calibration with internal CALIB
- 24 V DC power supply
- Integrated hydrogen and zero air generators for autonomous analysers
- Multiplexer: 2 to 32 streams
- 1 stream for water and 1 stream for air
- Internal or external multipoint calibration and zero with CALIB MFC, XXXCYL MFC, airmoCAL PAH
- airmoVOC C6C16 for more VOCs and S VOCs
- Analog output 4-20 mA or 0-10 V
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