Highly Sensitive Gas Chromatography-Mass Spectrometry (GC-MS) Coupling to Thermal Analyzers for Precise Identification of Gas Species
How to best identify the evolved gases in complex gas mixtures? Separate the gas species first!
The primary scope of TGA/STA-GC-MS coupling is to detect, separate and analyze organic components.
GC is a high-resolution method for separating volatile and semi-volatile compounds. The gas mixtures are separated based on the differences in component distribution between a stationary phase (e.g. inner coating of a capillary) and a mobile phase (purge gas; e.g., helium). Since the gas separation in the GC column takes a certain amount of time (the duration depends on sample characteristics, column flow rate, column length, and stationary and mobile phase), it is not possible to couple directly into the GC with a continuous online sample gas flow.
Valves-Based Gas Injector
• Double loop system for short injection intervals
• Software integrated in Proteus®
• Special insulation design for constant temperature (300°C) to prevent cold spots
• Independent injector system (standard injectors available for additional uses)
• Possible to bypass the column for direct MS coupling
Mass Spectrometer
• State-of-the-art MS 1.5 u to 1022 u with a high-speed sampling rate up to 22.222 u/s
• Tool-free servicing, e.g., simplified ion source maintenance without any need for tools
• Multiple ionization modes (optionally available EI, PI, CI, etc.)
• Stand-alone MS measurements
For GC-MS coupling, we rely on the world-renowned suppliers, Agilent and Jeol. Their products allow for perfect GC-MS supply and service quality, as we at NETZSCH expect of any entity with which we do business. This guarantees optimized performance for our own products.
