Thermo Mass Photo / TG-DTA/MS
SIMULTANEOUS THERMAL ANALYSIS AND MASS SPECTROMETRY
Thermo Mass Photo combines simultaneous thermal analysis with mass spectrometry. This technique is suitable for the qualitative analysis of evolved gases coincident with the STA signal.
Measures the evolved gases associated with weight changes and endothermic or exothermic reaction
Features
- Detection over a mass range from hydrogen to m/z 410 with high sensitivity
- Detection of unexpectedly evolved gas with high sensitivity
- Available with two ionizations: electron ionization (EI) and photoionization (PI)
- Integrated model of STA and MS coupled with the skimmer-type interface
- User-friendly software: simple measurement controlled by a single software and versatile analysis with 3D presentation of MS
- Measuring temperature range
- Standard model : Ambient to 1000°C
- High-temperature model : Ambient to 1500°C
Overview
Thermo Mass Photo/S is a simultaneous measurement system in which a skimmer type gas introduction interface and a soft ionization (photoionization) technique are integrated in a combination system of thermogravimetric-differential thermal analyzer and mass spectrometer. Measurements are carried out by heating the sample. The TG-DTA measures the thermogravimetric (TG) change and the thermal difference (DTA), while the evolved gaseous products are analyzed by the quadrupole mass spectrometer (QMS) which is injected towards the QMS consisting of a gas injection system.
Combining the fragment less soft-ionization technique and the ideal skimmer-type gas interface to measure the masses of the evolved gases with high accuracy, the gases are analyzed in real time even when multicomponent gases are generated simultaneously. The evolved gas analysis coupled with TG-DTA and QMS can be measured from room temperature to 1,000°C.
Improved performance and safe measurement
Combining the differential balance control and the horizontal triple-coil balance system improves the measurement stability of TG baseline and S/N ratio enabling a high sensitive measurement compared to the conventional type.
Aside from the temperature control method derived from the conventional temperature control program, high resolution thermal analysis is possible using the controlled rate thermal analysis (dynamic controlled method) because the heating rate is automatically controlled depending on the physical changes of the sample.
It is equipped with 2 different modes, namely electron ionization (EI) and soft ionization by photoionization (PI), which are available with just one-click on the software, suitable for qualitative analysis of evolved gases.
- Skimmer-type interface
Since it adopts the skimmer type interface which is composed of a double orifice structure based on the jet separator principle, we have achieved a more compact design than the conventional capillary method.
- Photo Ionization (PI）
The soft ionization method using VUV (vacuum ultraviolet) lamp enables ionization of molecular ions suppressing fragmentation. Through this, we can confirm the molecular ions (parent ions) in a fragment-free spectrum.
Since the conventional electron ionization is installed, by comparing the EI and PI results, we can obtain a more detailed evolved gas analysis result
Safety and easy maintenance
The system is designed for the user’s safety in which the furnace is inaccessible when the temperature is high and the ease of replacing the sample holders and the skimmer interfaces.
Safety and easy maintenance
The system is designed for the user’s safety in which the furnace is inaccessible when the temperature is high and the ease of replacing the sample holders and the skimmer interfaces.
User-friendly analysis software
The TG-DTA measurement result can be processed in a detailed data analysis using the standard analysis software. Moreover, multiplots of TG, DTA, temperature, and the mass spectral data (MS thermogram) can be displayed in real-time as well as after measurement. Since it is installed with an ASCII conversion software as a standard, the mass spectral data and the thermal analysis data can be easily utilized in other software.
Dynamic TG measurement
Thermo Mass Photo/S provides the two modes of dynamic TG measurement as a standard as well as the “Thermogravimetric and Differential Thermal Analyzer TG-DTA”,
Stepwise isothermal control (SIA) method
Constant velocity reactive control (CRC) method
Specifications Table
Product name | Thermo Mass Photo |
Technique | Simultaneous thermal analysis (STA) and mass spectrometry (MS) |
Benefit | TG provides information on the weight changes derived from reactions such as dehydration, evaporation, sublimation, desorption, decomposition, adsorption, oxidation, while DTA provides temperature information associated with endo- or exothermic reactions. |
Technology | Horizontal differential thermogravimetric-differential thermal analyzer (TG-DTA) w/ evolved gas analysis |
Core attributes | Horizontal differential triple-coil balance system automatically cancels various fluctuations causing TG drift resulting to a more accurate measurement. |
Core options | Smart loader |
Computer | External PC |
Core dimensions | 870 (W) x 576 (H) x 547 (D) (mm) |