Can be Coupled with Mass Spectrometer Calorimeters and Thermal Analyzers
Last Updated: April 1, 2025
Description
Calorimeters and thermal analyzers that can be coupled with mass spectrometers are sophisticated instruments designed to measure the thermal properties of materials while simultaneously analyzing the composition of evolved gases. These systems integrate the capabilities of thermal analysis with mass spectrometry to provide comprehensive data on both the thermal behavior and chemical composition of a sample.
Working Principle
The working principle of these coupled systems involves the simultaneous measurement of thermal properties and gas analysis. Thermal analyzers, such as thermogravimetric analyzers (TGA), operate by measuring changes in a sample's weight as it is heated, cooled, or held at a constant temperature. Mass spectrometers, on the other hand, analyze the gases evolved during these thermal processes by ionizing the gas molecules and measuring their mass-to-charge ratios. The coupling of these two technologies allows for precise correlation between the thermal events and the chemical composition of the gases released, providing a deeper understanding of the sample's behavior under thermal stress .
Applications
One specific application of coupled TGA-MS systems is in the analysis of calcium oxalate decomposition. This process involves monitoring the desorption of water, partial decomposition with CO/CO2 evolution, and full decomposition with CO2 evolution. Another example is the thermal decomposition of CuSO4, where the coupled system provides data that aligns well with expected values, demonstrating the correlation between mass loss and MS signals .
Advantages over other Calorimeters and Thermal Analyzers
Coupled systems offer several advantages over standalone calorimeters and thermal analyzers. They provide high signal sensitivity and allow for the precise correlation of thermal events with gas evolution, which is not possible with separate instruments. Additionally, the use of inert carrier gases like helium in the mass spectrometer minimizes spectral overlaps, enhancing the accuracy of the analysis .
Limitations
One limitation of mass spectrometers is their susceptibility to drift over time, necessitating frequent calibration. This can increase operational complexity and maintenance requirements. Additionally, the calibration process for mass spectrometers is more complex compared to other analytical instruments, such as gas chromatographs .
Considerations
When considering the use of coupled calorimeters and thermal analyzers with mass spectrometers, several factors should be taken into account. Initial costs can be high due to the complexity of the equipment. Operating expenses may also be significant, given the need for regular calibration and maintenance to ensure accuracy and reliability. The durability of these systems is generally robust, but the precision required for accurate measurements demands careful handling and regular servicing to maintain performance standards .
from Rigaku Corporation
Highly sensitive gas detection and accurate measurement of the sample temperature can be performed by this analytical system. The evolved gas when a sample is heated in a high vacuum is measured by mass spectrometry (MS). Details can be learned through identification of what was adsorbed to the... [See More]
- Thermal Analyzer Type: Temp. Programmed Desorption Analyzer
- Features: Coupled with a Mass Spectrometer
- Thermal Analyzer Performance Specs: Thermal Stability
- User Interface: Digital
from Linseis Inc.
The Differential Thermal Analysis is the most common thermal analysis method due to its wide range of information provided. The Linseis high temperature DTA PT 1600 is designed to deliver highest calorimetric sensitivity, short time constants and a condensation free sample chamber. These features... [See More]
- Thermal Analyzer Type: Differential Thermal Analysis
- Features: Cooling (optional feature); Programmable Heating; Atmosphere Control; Temperature Control; Coupled with a Mass Spectrometer; Coupled with a FTIR Spectrometer
- Temperature Range: -150 to 2400
- Remote Interface: Computer Interface; Special requirements such as modem, RF transmitter, etc.; Application Software Included.
from Rigaku Corporation
This unique hybrid evolved gas analyzer system makes it practical to obtain information on not only a change of mass of a substance taking place at time of heating but also a chemical reaction difficult to decide on by traditional thermal analysis alone. Moreover, this information set can be... [See More]
- Thermal Analyzer Type: Differential Thermal Analysis; Thermal Gravimetric Analyzer
- Features: Coupled with a Mass Spectrometer; Coupled with a Gas Chromatograph
- Thermal Analyzer Performance Specs: Thermal Stability
- Remote Interface: Computer Interface; Application Software Included.
from Linseis Inc.
The Linseis TGA PT1600 for thermogravimetric applications is a toploading Thermobalance, which offers a highly userfriendly design. Even at a sample weight of up to 5/25g the tara is done electronically. The specially designed furnaces allow fast heating and cooling rates as well as a highly precise... [See More]
- Thermal Analyzer Type: Thermal Gravimetric Analyzer
- Features: Programmable Heating; Atmosphere Control; Temperature Control; Coupled with a Mass Spectrometer; Coupled with a FTIR Spectrometer
- Temperature Range: -150 to 2400
- Remote Interface: Computer Interface; Special requirements such as modem, RF transmitter, etc.; Application Software Included.
from Linseis Inc.
With the magnetic suspension balance LINSEIS MSB PT 1, gravimetric measurements in a wide temperature and pressure range and under aggressive media can be done. Such a magnetic suspension balance consist of a balance for recording the measurement values, a suspension coupling which carries the... [See More]
- Thermal Analyzer Type: Thermal Gravimetric Analyzer
- Temperature Range: -196 to 2400
- Calorimeter Type: Differential Scanning Calorimeter
- Features: Programmable Heating; Temperature Control; Coupled with a Mass Spectrometer; Coupled with a FTIR Spectrometer