Online Detection Instruments Q-MS

Online Mass Spectrometer

Compact quadrupole mass spectrometer for real-time, fast, sensitive online detection of gas composition changes from ppb to percentage levels.

Online Mass Spectrometer

Online Mass Spectrometer

The Q-MS is designed specifically for researchers and engineers requiring real-time, fast, sensitive, and reliable online detection of gas composition changes. Designed for laboratory or production facilities, it provides a compact, powerful, and versatile online gas detection platform capable of delivering precise analytical results, tracking changes in gas composition within concentrations ranging from ppb to percentage levels.

Key Specifications

Mass Range 1–100 amu (std); 200 amu; 300 amu options
Resolution Unit resolution
Sampling Speed <50 ms/point (single channel)
Sampling Pressure 1 mbar to 1000 mbar
Max Inlet Temperature 150 °C
Vacuum System Turbomolecular pump + backing pump
Interface USB 2.0
Power Consumption < 600 W

Working Principle

After gas enters the ion source, gas molecules collide with high-energy electrons, causing ionization (positive charge). Remaining gas flow leaves the ionization space and is extracted by the vacuum pump. Under the ion optical system, ions are pulled out and focused, entering the quadrupole mass analyzer. Through scanning the RF electrical field or selecting specific masses, mass filtering is performed. Signal amplification and output via an electron multiplier achieves online monitoring of gas components.

Features & Advantages

Millisecond Detection Response

Fast <50 ms/point single-channel detection speed enables real-time tracking of rapid gas composition changes.

Wide Dynamic Range

Detects concentrations from ppb to percentage levels with 1–300 amu wide mass-to-charge ratio coverage.

High-Temperature Inlet

Inlet sampling temperature up to 150°C with SUS304 stainless steel tube and built-in fused silica capillary, preventing condensation of high-boiling-point compounds.

Typical Applications

The Q-MS is trusted by leading research institutions and industrial labs worldwide for a wide range of applications.

  • Biomass pyrolysis gas evolution analysis
  • Online gas monitoring in micro-reactor systems
  • Real-time reaction product tracking
  • Multi-channel synchronous gas detection
  • ppb-level trace gas online measurement

Interested in this product?

Our technical team is ready to discuss your specific research needs and help you determine the right configuration.