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After the analysis of the samples obtained at SynCraft and TU Graz they were compared to the data of the employed online and quasi-online gas analysis devices:

•    A heated FTIR-analysing system
•    A Micro-GC-System including CP-Sil 5 CB and a PoraPlot U column
•    A multi component gas analysing device including an infrared photometric detector (NDIR) and a thermal conductivity detector (TCD)

As shown in the figures the results for producer gas with low water and low tar content (staged air-gasification) are satisfying. For high water and tar content (e.g. fluidized bed steam gasification) the online methods via FTIR vary quite a lot. Further systematic evaluations and further development of methods are in progress.