The influence of sulphur on the catalytic combustion of gasified biomass for gas turbine applications has been studied over precious metal and metal oxide based catalysts, namely Pd/LaAl11O18, Pt/LaAl11O18, Pt/La0.5Ba0.5Mn0.5Fe0.5Al11O19, La0.5Ba0.5Mn0.5Fe0.5Al11O19 and LaMnAl11O19. The samples were washcoated on cordierite monoliths and tested in a bench-scale reactor with a synthetic low-heating value fuel mixed with air. The fuel gas, that resembles the gas from air-blown fluidised bed gasification of wood, was composed of hydrogen, carbon monoxide, methane, ethene, carbon dioxide, water and nitrogen. Different concentrations of hydrogen sulphide as well as sulphur dioxide were added to the fuel gas. The results show that all samples were deactivated to some extent by addition of sulphur, although poisoning of the catalytic combustion for each fuel component varied depending both on the active phase and on the support and generally was reversible. The palladium catalyst was severely deactivated for combustion of methane, although activity for carbon monoxide and hydrogen was almost maintained. Platinum catalysts were more severely poisoned for carbon monoxide and hydrogen, but not for methane. Metal oxide catalysts were severely deactivated for all fuel components, especially for carbon monoxide, and the La0.5Ba0.5Mn0.5Fe0.5Al11O19-sample was irreversibly poisoned. The samples were also characterised by BET, XRD, ICP, SEM-EDX, XPS and SIMS.