Manufacturer: V&F
V&F ComboSense
EI-MS and IMR-MS combined in one analyzer: main components in the vol% range measured simultaneously with trace gases at ppm and ppb level.
Key features
- Two mass spectrometers (EI-MS and IMR-MS) in one unit
- Main components 0–100 vol% and traces down to 100 ppt
- Covers permanent gases, noble gases and a wide range of organic compounds
- Heated gas inlet 50–190 °C
Technical data
- Measuring principle
- IMR-MS and EI-MS combined in one analyzer
- Mass range
- 7–519 amu (IMR-MS) / 1–100 amu (EI-MS)
- Resolution
- < 1 amu (IMR-MS / EI-MS)
- Analysis time
- 10 ms (IMR-MS) / 32 ms (EI-MS)
- Measuring range
- 10^5 (IMR-MS) / 0–100 vol% (EI-MS)
- Response time
- 150 ms (IMR-MS) / T90 150 ms (EI-MS)
- Detection limit
- 100 ppt (IMR-MS) / 100 ppm (EI-MS)
- Concentration drift
- < ±5 % over 24 h
- Accuracy
- < ±3 %
- Precision
- < ±3 %
- Ambient temperature
- 20–35 °C
- Max. humidity
- 80 % (non-condensing)
- Gas consumption
- 30–3000 ml/min
- Gas inlet temperature
- 50–190 °C
- Gas inlet pressure
- 0.75–2 bar(a)
- Power supply
- 230 V/50 Hz or 115 V/60 Hz, 1000 W
- Dimensions (W x H x D)
- 534 x 806 x 639 mm
- Weight
- 94 kg
Description
The V&F ComboSense combines an electron impact (EI-MS) and an ion-molecule reaction (IMR-MS) mass spectrometer in a single analyzer unit and can be used in a broad range of applications.
It measures the main components in the volume-percent range at the same time as trace gases at ppm and ppb level.
Typical applications
- Automotive applications
- Food, beverage and tobacco applications
- Environmental applications
- Medical applications
- Applications in various other industries
Application examples
Automotive industry
- Online oil dilution measurement
- Gas analysis in fuel cell technology
- Ammonia and NOx measurements in engine exhaust gas
- Desulfation strategies for catalytic converters
Environment – immission
- Immission measurements with IMR-MS according to EPA methods
- Immission measurement of gases near waste incineration plants
- Mobile air pollution measurement in traffic
- Air quality measurement near petroleum refineries
Environment – emission
- Online quantification of tar during biomass gasification
- Dioxin formation in waste incineration plants
Environment – ambient air quality
- Ambient air quality and workplace exposure limit measurements
- Real-time ambient air pollution analysis for photocatalytic research
Specialty and industrial gases
- CO2 raw gas measurement and process control
- Analysis of N2O, CO2 and hydrocarbons in pure O2
- Hydrocarbons and other impurities in calibration and specialty gases
Food, beverage and tobacco industries
- Rapid detection of impurities in raw milk
- Measurement of flavour release
- Fast detection of mould in jams
- Determination of nut quality
- Analysis and quantification of short-chain fatty acids in fermentation processes
- Quality control in PET recycling (PET flakes)
- Real-time measurement of styrene from polystyrene packaging
- Gas-phase analysis of cigarette paper aroma
- Determination of volatile compounds in cigarette packaging
- Puff-by-puff online analysis of cigarette smoke (Hoffmann analytes) in real time
Healthcare
- Non-invasive diagnosis of diseases by breath gas analysis
- Early detection of bacteria
- Monitoring of propofol concentration in exhaled air
- Bioavailability of administered drugs
- Halitosis after drug administration
Cement industry
- Detection of pollutants from cement production
- Emission measurements of alternative fuels in the cement industry
- Observation of benzene formation in cement kilns
Steel industry
- Process control in steel production
- Monitoring of hazardous exhaust gases in steel production
- Hydrogen production in a cyclic steelmaking process
Alternative energies
- Emission reduction using hydromethane
- Monitoring of gasification processes
- Gas analysis in fuel cell technology
Polymer, tyre and rubber industry
- Process monitoring in polymer production for the tyre industry
- Quality control in PET recycling (PET flakes)
- Real-time measurement of styrene from polystyrene packaging
- Evaporation of inorganic and organic compounds from elastomers
Measurable compounds
With IMR-MS
- Inorganic compounds: H2O, O2, CO2, CO, H2S, SO2, S, NH3, NO, NO2, N2O, HCl
- Aromatics: C6H6 (benzene), C7H8 (toluene), C8H8 (styrene), C8H10 (xylene/ethylbenzene), C6H6O (phenol), PAHs
- Alkanes: CH4, C2H6, C3H8, C4H10, C5H12, C6H14, C7H16, C8H18, C9H20, C10H22
- Alkenes: C2H4, C3H6, C4H8, C5H10, C6H12, C7H14, C8H16, C9H18, C10H20, C4H6 (1,3-butadiene)
- Alkynes: C2H2 (acetylene), C3H4 (propyne)
- Sulfur compounds: H2S, COS, SO2, CS2, CH3SH, C2H5SH
- Nitrogen compounds: NH3, NO, NO2, N2O
- Alcohols: CH3OH, C2H5OH, C3H7OH, C4H9OH
- Aldehydes: HCHO (formaldehyde), CH3CHO (acetaldehyde), C2H5CHO (propionaldehyde), C6H12O (hexanal), C7H6O (benzaldehyde)
- Ketones: C3H6O (acetone), C4H8O (methyl ethyl ketone)
- Carboxylic acids: HCOOH (formic acid), CH3COOH (acetic acid), C4H9COOH (valeric acid)
- Amines: CH3NH2 (methylamine), C3H9N (trimethylamine), C6H5NH2 (aniline)
- Mercaptans and organosulfur compounds: CH3SH (methyl mercaptan), C2H6S (dimethyl sulfide), C2H6S2 (dimethyl disulfide)
- Siloxanes: C6H18OSi2 (hexamethyldisiloxane), C6H18O3Si3 (D3), C8H24O4Si4 (D4), C10H30O5Si5 (D5), C12H36O6Si6 (D6)
- Halogenated hydrocarbons: C2H3Cl (vinyl chloride), CHCl3 (chloroform), C6H5Cl (chlorobenzene), C4H3F7O (sevoflurane)
- Further compound classes: ethers, esters, organophosphorus compounds, terpenes, lactones
With EI-MS
- Permanent gases: H2, O2, N2, CO, CO2
- Moisture: H2O
- Noble gases: He, Ne, Ar, Kr, Xe
- Hydrocarbons: CH4, C6H6, C7H8
Values marked as application-dependent (measuring range, response time, detection limit, gas consumption) depend on the compounds measured, the system configuration and the instrument settings.
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