ProC-2 Online time-of-flight mass spectrometer

Product description

• The ion source utilises a specialised photoionisation (PI) source, capable of ionising all components in ambient air (hydrogen, oxygen, carbon monoxide, carbon dioxide, ozone, nitrogen oxides, sulphur-containing compounds, chlorine-containing compounds, hydrocarbons, polycyclic aromatic hydrocarbons, etc.), thereby enabling the analysis of all airborne constituents in a single measurement

• The ionisation process produces virtually no fragments, thereby enabling real-time analysis of the analytes directly without the need for chromatographic separation.

• The use of high-transmission-efficiency ion lens technology significantly enhances the instrument’s sensitivity, enabling quantitative detection of analytes in ambient air at concentrations in the ppb range, with a wide dynamic range;

• Utilising vertical ion introduction technology and a dual-field reflection time-of-flight mass spectrometer as the mass analyser, high mass resolution is achieved, enabling the differentiation of isomers in the air.

• An MCP detector is employed, providing a gain of 10⁶, effectively shielding against pulse interference signals and yielding a high signal-to-noise ratio

• Fast analysis speed (sampling frequency of 30,000 Hz) enables the acquisition of mass spectra for all analytes (including unstable radicals) within seconds, as well as dynamic curves showing changes in analytes over time, thereby supporting the study of time-dependent kinetic processes.

Explanation of basic performance specifications

• Mass detection range: 1–500 amu

• Sensitivity: 10 ppb

• Mass resolution: >2000@(m/z=92)

Product Features

• Capable of online monitoring of light-, heat- and electricity-induced catalytic gas-phase products

• Capable of detecting unstable intermediate products such as free radicals, formaldehyde and ketones (reactor optional)

• Fast sampling speed (on the order of seconds)

• No chromatographic separation required; no polarity discrimination

• Simultaneous monitoring of multiple reaction channels via switching valves (valves optional)

• Specialised database of catalytic and pyrolysis products

• Online monitoring of products at fixed temperatures and during programmed temperature ramping

• Can be coupled with thermogravimetric analysers and infrared spectrometers

Main accessories (optional)

• Multi-channel switching valve

• In-situ thermocatalytic reactor

• In-situ photocatalytic reactor

• Combustion reactor

• Flow-through reactor

• JSR reactor

• Gas chromatography, infrared and thermogravimetric interfaces and operating software

Application scenarios

• Pyrolysis/combustion reactions

• Photocatalytic/thermal catalytic reactions

• Low-temperature oxidation reactions

• Baking/thermal desorption

Application Sectors

• Petrochemicals: ethane dehydrogenation, propane dehydrogenation, long-chain alkane cracking

• Coal chemical industry: olefin production from synthesis gas, oil production from synthesis gas, alkane production from synthesis gas, olefin production from natural gas

• Environmental monitoring: methane oxidation, formaldehyde/benzene compound degradation, carbon dioxide reduction, NOx removal

• Universities/Research Institutions/Laboratories

• Research into the Mechanisms of Gas-Solid Catalytic Reactions

• Various Catalytic Reactions

• Cigarette manufacturing

• Food processing

• Pharmaceuticals

• Industrial gases

• Chemistry and Chemical Engineering

• Fertilisers/Synthetic Ammonia

• Fermentation

• Metallurgy/Steel

• Semiconductors

Application Examples

Detection of intermediates in the methane oxidation coupling (OCM) reaction

Enables in-situ trapping and detection of reactive intermediates such as methyl radicals, peroxymethyl radicals and formaldehyde

Monitoring of cigarette pyrolysis products

The distribution and intensity differences of pyrolysis products at different pyrolysis temperatures can be observed (m/z=162 corresponds to nicotine)

Monitoring of catalytic pyrolysis products from polyethylene

When HZSM-5 catalyst is added to polyethylene, a significant increase in the selectivity of certain catalytic pyrolysis products can be observed

Dynamic monitoring of methanol-to-olefins (MTH) products

The formation and conversion processes of formaldehyde (a carbon deposit intermediate) and other products on different catalysts can be observed.

Monitoring of Coal Pyrolysis Products

The formation of a large number of hydrocarbon pyrolysis products can be observed online

Study of the MTH reaction using mass spectrometry–infrared spectroscopy coupling

Simultaneous acquisition of spectra for both gas-phase desorbed and adsorbed products

The company undertakes bespoke customisation and other products

We also provide bespoke customisation services for mass spectrometry-specific spare parts, including non-standard time-of-flight mass analysers, various catalytic and high-pressure pyrolysis reactors, photoionisation sources, ionisation chambers, JSR reactors, molecular pumps, MCP microchannel plates and data acquisition cards.