Quadrupole Mass Spectrometer Coupling for High Gas Detection Sensitivity – All Controlled via a Single Software Application

Quadrupole Mass Spectrometer Coupling for High Gas Detection Sensitivity – All Controlled via a Single Software Application

The Fleshed-Out Design of the QMS 403 Aëolos Quadro for Coupling to TGA, STA, DSC and DIL Systems

The 403 Aëolos Quadro quadrupole mass spectrometer is a new compact mass spectrometer with a heated capillary inlet system for routine analysis of gases and, in particular, volatile decomposition products of thermal analysis. This system is optimized for coupling to differential scanning calorimeters (DSCs), thermogravimetric analyzers (TGAs) and dilatometers (DILs). The software is unique: fully integrated MS software for measurement and analysis.

Capillary Coupling for Optimized Gas Flow Conditions

  • Single-step pressure reduction
  • Minimization of cold spots in the entire transfer path of the gases due to an even temperature of 300°C (optionally 350°C)
  • Heated chamber for easy handling and precise adjustment of the quartz glass capillary inlet to the QMS
  • Flexible, allowing standard thermoanalytical measurements and also simultaneous TGA, MS (GC-MS) and MS-FT-IR measurements
  • Very robust and service-friendly while still maintaining high sensitivity (detectable mass loss in the μg-range)
  • TGA-MS measurements under humid atmospheres possible
  • Hyperbolic quadrupole system with pre-filter for improved transmission in the high mass range and improved sensitivity in the low mass range (e.g., H2, He)
  • SEM with discrete dynodes and integrated Faraday cup for high dynamic range and long lifetime
  • 3-D presentation of MS and thermal analysis data
  • Operation and data evaluation with Proteus® software

Sophisticated Heated Transfer System and Single-Step Pressure Reduction for Loss-Free Gas Transport

The high temperature of the gas transfer system and the absence of pressure reduction orifices practically eliminate condensation of decomposition products during thermal analysis experiments. This achieves a high detection sensitivity and facilitates quantitative detection of all identified gas components.

The inlet system with the capillary allows for the investigation of other gas sources independent of the thermoanalytical system.

Design of the NETZSCH Thermal Analyzers

Already from the outset, NETZSCH thermal analysis devices were developed with the possibility of coupling in mind. Over the last 40 years, the gas transport path – which starts at the furnace outlet and progresses via the adapter and capillary up to the QMS inlet – has been considered and optimized at every new phase in development. Today, any gas loss caused by condensation at cold spots has nearly been eliminated; also, very low carrier gas flow rates are sufficient for complete transfer. The minimal dilution of the volatile sample products released results in high detection sensitivity with the TGA/STA/DIL-QMS 403 Aëolos Quadro.

 

Application Areas of the QMS 403 Aëolos Quadro Coupling

 

  • Decomposition                 
    • Dehydration
    • Stability
    • Residual
    • Solvent Pyrolysis
  • Solid-Gas Reactions
    • Combustion
    • Oxidation
    • Corrosion
    • Adsorption
    • Desorption
    • Catalysis
  • Composition Analysis
    • Polymer Content
    • Proximate Analysis
    • Binder Burn-Out
    • Dewaxing
    • Ash Content
  • Evaporation
    • Vapor Pressure
    • Sublimation

 

Key Technical Specifications

Key Technical Specifications

(subject to change)

  • Mass range:
    1 u to 300 u(*), optionally 512 u, including autotuning
  • Ion source:
    Cross beam El
  • Cathodes/Filaments:
    2 Y2O3-coated iridium cathodes
  • Detector:
    sem with discrete dynodes and integrated Faraday cup
  • Vacuum system:
    turbomolecular pumps with 4-stage diaphragm pump (oil-free)
  • Capillary:
    Quartz-glass (max. 300°C), optionally stainless steel (max. 350°C), with supply coil, easily exchangable
  • Adjustable heating of adapter head:
    Capillary and QMS inlet system to a maximum of 300°C (optionally 350°C)
  • Pressure reduction:
    Single-step, from 10³ mbar to 5x10-6 mbar, no orifice
  • QMS measuring modes:
    Scan analog, scan bargraph, MID
Coupled to TGCoupled to TG
A Single Software Program – Proteus Fully Controls Thermal Analyzer and QMS 403 Aëolos Quadro

A Single Software Program – Proteus Fully Controls Thermal Analyzer and QMS 403 Aëolos Quadro

Proteus® software entirely controls measurements using QMS 403 Aëolos Quadro coupled to a thermal analyzer. The software combines the two coupled methods into a single software application for both control and data acquisition.

  • Individual definition of any parameters relevant to thermal analysis (e.g., temperature program, heating rate, etc.) as well as any parameters relevant to the mass spectrometer (e.g., mass ranges, scans, etc.)
  • Simultaneous start and stop of the hyphenated measurement
  • Evaluation of MS results in Proteus®
  • 3-D presentation of spectra data together with temperature, TGA and/or DSC curves and single mass number traces, including peak determination, different color schemes, and surface views
  • Spectra export in NIST format for identification in the NIST database






Simultaneous presentation of the MS and thermoanalytical data in a 3-D cube. STA-QMS measurement on polystyrol (PS) granules.

Accessories

Accessories

With the PulseTA® technique, an exactly defined quantity of gas is injected into the purge gas of the thermobalance (TGA) or the simultaneous thermal analysis instrument. PulseTA® is a perfect tool for achieving quantitative gas detection in separate calibration runs or even online during a sample measurement.

Application of PulseTA®

  • Injection of inert gas for calibration purposes
  • Injection of reactive gas for gas-solid reactions, e.g., reduction of metal oxides by hydrogen pulses
  • Injection of reactive gas for adsorption purposes, e.g., ammonia adsorption by a zeolite 
Documentation

Documentation

Documentation sur les applications

Documentation sur les applications
Documentation sur les applications
Documentation sur les applications
Documentation sur les applications
Documentation sur les applications
Documentation sur les applications
Documentation sur les applications
Documentation sur les applications
Documentation sur les applications
Documentation sur les applications
Documentation sur les applications
Documentation sur les applications
Documentation sur les applications
Documentation sur les applications

Several standards such as NaHCO3 and CuSO4 * 5H2O are investigated by evolved gas analysis (TG-FTIR and TG-MS) in order to identify and quanitfy the relreased amount of gases

JTAC, Vol 83 (2006) 2, 321

In order to download, the complete paper, please visit Journal of Thermal Analysis and Calorimetry: springerlink.metapress.com/content/f87806577257t86v/

Documentation sur les applications

Several standards such as NaHCO3 and CuSO4 * 5H2O are investigated by evolved gas analysis (TG-FTIR and TG-MS) in order to identify and quanitfy the relreased amount of gases.

 

published: Thermochim. Acta, 440 (2006) 81

Documentation sur les applications

Investigation of the thermal evolution process of mixed oxide solid films by means of TG-MS

published: Journal of Thermal Analysis and Calorimetry

Documentation sur les applications
Documentation sur les applications
Documentation sur les applications

Characterization of decomposition products of iron hydroxide sulfate by means of TG-DSC-MS

published: LaborPraxis März 2008

Poster

Diffusion sur Internet

NETZSCH Webinar Evolved Gas Analysis
NETZSCH-WebinarCouplage analyse des gaz TG-MS th
Unleashing the Power of Thermogravimetric Analysis TGA or STA
NETZSCH-Webinar Measuring Identifying Gas Release from Li-ion Batteries and Battery Materials Decomposition

Vous pouvez être intéressé également par:

QMS 403/5 SKIMMER - Système de couplage

La plus haute sensibilité de détection grâce un couplage direct entre la STA 409 CD et un spectromètre de masse quadrupole (QMS).

STA 449 F3 Jupiter®

La STA 449 F3 Jupiter® combine les avantages d’une thermobalance hautement sensible et d’un véritable calorimètre différentiel à balayage. Différents fours et capteurs TG, TG-ATD et TG-DSC peuvent être utilisés, le système pouvant être ainsi facilement optimisé pour la plupart des applications.

Couplage GC-MS

NETZSCH, en collaboration avec JAS (Joint Analytical Systems), a élaboré une innovation majeure dans le domaine de l’analyse des gaz de réaction (EGA). Les gaz de réaction provenant de la thermobalance ATG sont dirigés directement dans le chromatographe GC via une ligne de transfert chauffée. Via une boucle échantillon, les substances atteignent alors la colonne où elles sont séparées et analysées en fonction de leur masse grâce un détecteur. Ce qu’apporte le nouveau système, c’est le fait que le début des mesures est synchronisé. Cela permet une détection des substances émises corrélée à la température, ce qui conduit à une corrélation directe avec les pertes de masse.

STA 449 F1 Jupiter®

Avec l’introduction de la STA 449 F1 Jupiter® NETZSCH établit de nouveaux standards. Une flexibilité de configuration illimitée et des performances inégalées sont les fondations pour une grande variété d’applications possibles dans les domaines des céramiques, des métaux, des plastiques et des composites à travers une large gamme de température (-150...2400°C).

DSC 404 F1 Pegasus® – DSC haute température

Le DSC 404 F1 Pegasus® (Calorimètre Différentiel à Balayage) permet la détermination de chaleur spécifique et d’effets calorifiques sur une large gamme de température avec une précision, une résolution et une fiabilité exceptionnelles. La conception étanche au vide poussé, les multiples fours et capteurs, facilement interchangeable par l’utilisateur, font du DSC 404 F1 Pegasus® l’outil idéal pour les mesures DSC pour les recherches de haut niveau dans les universités et pour les projets de développement dans le secteur industriel.

DIL 402 Expedis Select & Supreme

Le nouveau dilatomètre DIL 402 Expedis Select & Supreme offre la technologie dernier cri en dilatométrie et il est conçu pour les applications sophistiquées. Tous les instruments de la série DIL Expedis possèdent la cellule de mesure révolutionnaire NanoEye; une nouvelle dimension dans la gamme de mesure et dans la précision.

TG 209 F1 Libra®

Cette thermobalance haut de gamme, de part sa flexibilité dans les options, couvre toutes les applications imaginables d’une thermobalance moderne allant jusqu’à 1100°C. La haute sensibilité, les temps de refroidissement courts et le passeur automatique d’échantillons (ASC), rendent cette TG particulièrement adaptée aux analyses des plastiques et caoutchoucs.