Quadrupole Mass Spectrometer Coupling for High Gas Detection Sensitivity from Low to High Mass Range

Quadrupole Mass Spectrometer Coupling for High Gas Detection Sensitivity from Low to High Mass Range

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).

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 
문헌

문헌

응용문헌

응용문헌

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/

응용문헌

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

응용문헌

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

published: Journal of Thermal Analysis and Calorimetry

응용문헌

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

published: LaborPraxis März 2008

포스터

웹캐스트

NETZSCH Webinar Evolved Gas Analysis
Unleashing the Power of Thermogravimetric Analysis TGA or STA
NETZSCH-Webinar Measuring Identifying Gas Release from Li-ion Batteries and Battery Materials Decomposition

추가 관심 제품 정보:

QMS 403/5 SKIMMER – 가스 분석 시스템

STA 409 CD 와 Quadrupole Mass Spectrometer (QMS) 를 직접 연결하여 최고의 검출 감도를 나타냅니다.

STA 449 F3 Jupiter®

새로 출시된 STA 449 F3 Jupiter® 는 높은 감도의 TG와 진정한 DSC의 장점을 결합하였습니다. 다양한 furnace 와 TG, TG-DTA 및 TG-DSC 센서를 사용할 수 있어서 다양한 응용분야에 쉽게 최적화 시킬 수 있습니다.

기체 크로마토그래피(GC)-질량 분석기(MS)의 연결

JAS (Joint Analytical Systems) 와 공동 연구한 NETZSCH는 기체 반응 분석에 대한 활로를 확보하였다. TGA 에서 발생된 기체 반응은 가열된 기체 이송 장치을 통해 GC 밸브 박스 안으로 직접적으로 공급되고, 순환장치에 의해 분리된 시료는 GC분리관에서 선택적으로 질량검출기에서 분석된다. 새로운 시스템에서 측정이 시작되면 연결된 장치에서 연동되어 실행된다. 이것은 온도에 따른 배출된 가스의 성분 분석을 가능하게 하고, 질량 감소 단계와의 직접적인 상관관계 변환을 가능하게 한다.

STA 449 F1 Jupiter®

새로운 STA 449 F1 Jupiter® 의 출시로 네취는 새로운 표준으로 자리잡게 되었습니다. 무한한 유연성 있는 장비 구성과 최상의 성능은 넓은 범위의 온도(-150...2400°C)와 세라믹, 금속, 플라스틱 및 복합재료 등의 분야에서 매우 다양한 응용 가능성의 토대를 형성하였습니다.

DSC 404 F1 Pegasus® – 고온용 DSC

새로운DSC 404 F1 Pegasus®는 고감도 정압비열(Cp) 측정 및 뛰어난 신뢰도, 고감도, 정확도를 보장하는 프리미엄 고온 DSC입니다. 고진공 디자인의 다양한 furnace와 센서는 사용자가 손쉽게 교체할 수 있으며, 이 프리미엄 고온용 DSC는 각 분야의 연구소 및 대학에서 높은 수준의 연구 업무를 수행하는데 이상적인 장비입니다.

DIL 402 Expedis Select & Supreme

The new dilatometer DIL 402 Expedis Select and Supreme offer state-of-the-art dilatometer technology and are designed for a wide range of sophisticated applications. All instruments of the DIL Expedis series feature the revolutionary NanoEye measuring cell; a new dimension in measuring range and accuracy.

TG 209 F1 Libra®

프리미엄 TGA은 1100°C까지의 온도 범위에서 가능한 모든 시료에 유용하게 적용할 수 있습니다. 매우 높은 감도와 짧은 냉각 시간, 전자동 시료 공급 장치 등, 주로 플라스틱, 고무의 조성 분석 등에 최적화 되어 있습니다.