Coupling by heated capillary tube
The gases evolved by the sample are collected in the TGA furnace close to the crucible. They are quickly (approx. 100 ms) transferred to the ion source of the Mass Spectrometer thanks to the pressure difference between the TGA furnace (approx. 1 bar) and MS (approx. 10-7 mbar). The gases are not exposed to a temperature lower than 300 °C during the transfer. The ionized molecules and fragments are then separated according to their m/z ratio and detected.
The intensity of one or more selected characteristic m/z can be monitored and superimposed to the mass variation signal. Full spectra can also be acquired frequently over the duration of the TGA experiment. Mass spectrometers with amu ranges up to 300 can be employed.
Here the evolved gases are accelerated by a two steps pressure drop system. Their speed overcoming the speed of sound, they are instantaneously transferred to the ion source, avoiding any condensation or recombination during their route. Heavy, high boiling point molecules like metal vapors or polyaromatic compounds can thus be detected. Mass spectrometers with amu ranges up to 1024 can typically be employed.
– Features: best limit of detection, fast transfer time
– Benefits: applicable to small mass variations, easy to setup, detection of heavy molecules (with Supersonic System)
TGA-EGA and Simultaneous STA-EGA, from ambient to 1150°C or 1600°C THE HIGHLIGHTS Simplicity of use: thanks to both an ergonomic design and the dedicated market leading Calisto software, LABSYS evo is user friendly and intuitive to operate – LABSYS evo offers a “Plug & play” gas analyzer coupling device,enabling simultaneous MS, FTIR or GC/MS connections. […]
An innovative line of Thermal Analyzers (-120 / 830°C) with 3D-Inside technology: TG-DSC-EGA The HIGHLIGHTS Thermogravimetry Excellent TG signal baseline: the symmetry of the microbalance, with its sample and reference suspended vertically from the beam guarantee reproducible positioning of the sample over time and excellent stability of the TG signal baseline. Automatic compensation of Buoyancy: the sample […]
High-performance simultaneous TGA & DTA / DSC (ambient / 2400°C) with Evolved Gas Analysis The HIGHLIGHTS SETSYS Evolution is the standard for high performance TGA, TG-DSC and TG-DTA application. It is based on a complete modular thermal analysis platform for – TGA, DTA and DSC – Simultaneous TGA/DTA and TGA/DSC – The key to the […]
Large volume & high temperature TGA/STA-EGA (ambient to 2000°C) This is an extremely high performance weighing module used with the TGA 96. This balance can weigh samples up to 100 g and is well suited to measuring both micro-quantities of samples (a few milligrams) as well as large, dense samples while maintaining measurement resolution to […]
分析气体组分的独立高压质谱仪（从200bar至10-8mtorr） RGA Pro是一款残余气体分析仪，可与PCTPro-2000或其他（实时分析气体吸附和反应过程的气体组分）进程联用。该体系用100-300 amu四极质谱仪要比1 amu的分辨率要好。控制扫描和数据采集的软件支持各种扫描模式，包括源自标准参比数据库的基于存储图谱的自动识别图谱。RGA Pro是一款独立仪器，其含有混合涡轮分子阻力泵和一个专用的气体计量管（允许PCTPro-2000和气体反应或处理系统的操作压力为200 bar，气体在整个真空度下采样。）