Weigh 0,1 g to 0,2 g of the sample, to the nearest 0,1 mg, into a combustion crucible/boat, and cover with accelerator. Place the crucible/boat in the furnace. Weigh the absorption U-tube to the nearest 0,1 mg and connect it to the assembly.
After ignition, remove the absorption U-tube from the test assembly. Allow to cool in a desiccator, and then weigh to the nearest 0,1 mg.
If the palladium(II) chloride solution in the washing bottle turns to a dark colour, this is indicative of insufficient oxygen being present during the combustion process. In this case, disregard the results and increase the oxygen flow rate in the next analysis.