
Dr. Will Hamby
Thermal Analysis Application and Product Specialist – METTLER TOLEDO UK
Graduated from the University of Birmingham with a PhD in material characterisation of thermoplastic composites. After gaining valuable experience working on several industrial projects throughout my PhD, I joined Mettler-Toledo Ltd. in 2021 as an Application and Product Specialist in the thermal analysis team. With a territory covering the whole of the UK I am fortunate to meet and work alongside experts from a variety of industries with a range of applications from pharmaceuticals to battery manufacturing.
For more information on our thermal analysis solutions, visit: www.mt.com/TA
Presentation:
TGA - Micro GC/MS: A unique approach to real-time identification and quantification of small unknown molecules
A thermobalance coupled to a suitable Evolved Gas Analysis (EGA) system allows qualitative information to be obtained about the gaseous reaction or decomposition products formed in a TGA measurement in addition to purely quantitative information about mass changes. TGA-Micro GC/MS is an online technique ideal for the detection of light and medium weight compounds (e.g. CO, CO2, H2O, NOx, hydrocarbons up to C10) from both known and unknown gaseous mixtures that cannot be detected (or only detected with difficulty) using a conventional GC. The Micro GC/MS emission profile reflects the concentration of a volatile compound in the decomposition gas as a function of temperature or time. Together with the TGA curve and its first derivative, it allows better understanding of the processes that occur during the mass changes.
