Pyrolysis liquid fraction is produced from the vapor condensation of thermal depolymerization and decomposition of biomass; therefore, gas chromatography should be better than liquid chromatography.
Especially the gas chromatography-mass spectrometry (GC-MS), to determine the chemical composition of each peak.
However, other technique such as FT-IR spectroscopy analysis characterize the chemical composition of the main chemical groups.
GC separates the components of the pyrolysis liquid based on their boiling points, while GC-MS provides additional information by identifying the chemical structure of the individual components. Other techniques that can be used for analyzing the pyrolysis liquid fraction include Fourier Transform Infrared (FTIR) spectroscopy and Nuclear Magnetic Resonance (NMR) spectroscopy.
The choice of technique depends on the specific research question, the type of sample being analyzed, and the available equipment and expertise. GC-MS is a powerful tool for identifying individual components and their structures in complex mixtures, but it requires sophisticated instrumentation and specialized training. FTIR and NMR spectroscopy are non-destructive techniques that provide structural information on the pyrolysis liquid fraction, but they may not have the same level of sensitivity as GC-MS.
You may analyze the liquid fraction based on several analytical techniques. Nevertheless, the application of GC-MS is fundamental for this purpose. the rest are complementary or are suitable just for a specific search.
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