Made to order

Microtrac BELMASS II Quadrupole Mass Spectrometer – Evolved Gas Analysis for BELCAT | m/z 1–200

With every system

Installation & coupling transfer-line setup and coupling to your BELCAT II
Validated first run a TPD-MS measurement on your own catalyst

Catalyst Evaluation, Gas Adsorption Measurement, Mictrotrac Particle Characterization · Quadrupole mass spectrometry (evolved gas analysis)

Microtrac BELMASS II Quadrupole Mass Spectrometer – Evolved Gas Analysis for BELCAT | m/z 1–200

Quadrupole mass spectrometer for evolved-gas analysis — couples to the BELCAT II to identify desorbed and reaction species during TPD, TPR and thermal decomposition, across m/z 1–200.

✔ Mass range m/z 1–200 · Faraday cup or SEM detector
✔ Selected-ion monitoring on up to 16 channels
✔ Couples to BELCAT II for TPD-MS / evolved-gas analysis
✔ Lead time: configured to order — request current timeline

Prices follow supplier cost and stock availability and are updated regularly. The price you see is today's price — once you order, it's held for 7 days.

Install + training included Tailored service plan

m/z 1–200 mass range

16 SIM channels

≥2M resolution M/∆M

36 kg bench-top

What your catalysis lab actually checks

Identify, don't just quantify

Coupled to the BELCAT II, the BELMASS II resolves each TPD or TPR peak into specific gases across m/z 1–200 — the species information a thermal conductivity detector alone cannot give.

An applications engineer on the line

Coupling, selected-ion monitoring and evolved-gas method support from engineers who run catalyst analysis in-house at Additive Plus. Sub-4h reply, NDA standard.

m/z 1–200

Mass range

SIM channels

Faraday / SEM

Detector

≤200 °C

Heated transfer line

36 kg

Unit weight

About this product

BELMASS II is a quadrupole mass spectrometer for evolved-gas analysis — it couples to the BELCAT II to identify the species desorbed or produced during TPD, TPR and thermal-decomposition experiments, across m/z 1–200.

What Is the BELMASS II: Evolved-Gas Mass Spectrometry

The BELMASS II is a quadrupole mass spectrometer that samples the effluent gas from a temperature-programmed experiment and identifies its components. Paired with the BELCAT II catalyst analyzer through a heated transfer line, it turns each TPD or TPR peak into a set of identified gases rather than a single quantity. See full specifications below.

BELMASS II software area calculation — Peak-area calculation in the analysis software.

BELMASS II software distribution fitting — Distribution fitting of evolved-gas signals.

BELMASS II software peak deconvolution — Peak deconvolution for overlapping species.

Why catalysis labs add the BELMASS II

Species identification on top of temperature-programmed quantification.

Species identification

Turns a TPD or TPR peak into identified gases — m/z 1–200 tells you what desorbed or reacted, not only how much.

Sensitive detection

Faraday cup or secondary-electron-multiplier detector with M/∆M ≥ 2M resolution captures low-level and overlapping species.

Built for coupling

Designed to pair with the BELCAT II through a heated transfer line (to 200 °C) so evolved gas reaches the MS without condensation.

Multi-channel monitoring

Selected-ion monitoring on up to 16 channels, mass scanning, peak deconvolution and baseline correction for quantitative evolved-gas analysis.

How Additive Plus delivers it

Matched to your BELCAT II, installed and method-supported.

Step 01

Configure

We confirm coupling to your BELCAT II, the detector option and the transfer-line setup for your target species.

Step 02

Install & train

Installation, coupling to the BELCAT II, software training and a validated first TPD-MS run on your own catalyst.

Step 03

Method support

Selected-ion monitoring and evolved-gas method support from engineers who run catalyst analysis in-house.

Specifications at a Glance

Key figures below — the full set is in the Specifications tab.

Parameter	Specification
Type	Quadrupole mass spectrometer
Mass range	m/z 1–200
Detector	Faraday cup or SEM
Resolution	M/∆M ≥ 2M
Coupling	BELCAT II via heated line (≤200 °C)
Dimensions / weight	280×400×600 mm · 36 kg

Typical applications

Where knowing which gas evolved changes the conclusion.

TPD-MS

Desorbed-species identification

TPR analysis

Reduction gas tracking

Thermal decomposition

Evolved-gas profiling

Catalyst reaction

Real-time product ID

CCUS & gas separation

Breakthrough species

Battery materials

Outgassing analysis

Running a BELCAT II and need to know which species evolve? Tell us your experiments — TPD-MS, TPR or thermal decomposition — and a materials engineer will confirm coupling and detector configuration before you buy. Sub-4h reply, NDA standard.

Why Source the BELMASS II Through Additive Plus

Coupling and detector configuration matched to your BELCAT II and target species.
Installation, transfer-line setup, software training and a validated first TPD-MS run on your own catalyst.
Selected-ion monitoring and evolved-gas method support from a team that runs catalyst analysis in-house.
Leasing and financing available for capital lab equipment · <24h response · systems delivered across 23 countries.

Brand	Microtrac
Technology	Quadrupole mass spectrometry (evolved gas analysis)
Certification	CE
Weight	79 lb / 36 kg

Product data sheet (PDF)

pdf · 1395 KB

↗

Product videos

Common questions

Don't see yours? Email [email protected] — NDA standard, typical reply within 4 hours.

What does the BELMASS II add to a BELCAT II?

The BELCAT II thermal conductivity detector tells you how much gas evolves during a temperature-programmed run; the BELMASS II tells you what that gas is. Coupled through a heated transfer line, the quadrupole mass spectrometer scans m/z 1–200 so a single TPD or TPR peak is resolved into specific species. That distinction matters when several gases overlap or when you study reaction pathways rather than totals.

What mass range and resolution does it offer?

The BELMASS II covers m/z 1 to 200 with a resolution of M/∆M ≥ 2M, using either a Faraday cup or a secondary-electron-multiplier detector for higher sensitivity. That range captures the common gases in catalysis and thermal-analysis work — hydrogen, water, CO, CO₂, NH₃, hydrocarbons and more — and the SEM detector resolves low-concentration species.

Can it monitor several species at once?

Yes. The BELMASS II software supports selected-ion monitoring on up to 16 channels, so you follow multiple species simultaneously through a temperature ramp, plus full mass scanning, peak deconvolution and baseline correction. That lets you build quantitative evolved-gas profiles and separate overlapping desorption events in one experiment.

Does it require a BELCAT II, or can it stand alone?

The BELMASS II is designed primarily to couple with the BELCAT II for evolved-gas analysis, where the heated transfer line and shared workflow deliver the most value. It can also combine with other thermal-analysis instruments for gas identification. We confirm your intended coupling and configure the transfer line and software accordingly before quoting.

What lead time and support come with the BELMASS II?

The BELMASS II is configured to order and matched to your BELCAT II, so lead time depends on detector and coupling options — request a current timeline and we confirm it in writing. Installation, transfer-line setup, software training and a validated first TPD-MS run on your own catalyst are included, backed by application engineering with a sub-4-hour response.

Place your order, or talk to an engineer first

Order Microtrac BELMASS II Quadrupole Mass Spectrometer – Evolved Gas Analysis for BELCAT | m/z 1–200 direct, or talk to materials engineer

Add to cart