The sample is again filtered on the Buchner Funnel. It is washed with water until neutral then dried in the oven. Top of Page Wood Alpha-cellulose extraction method It is assumed that the sample has been planed and milled. The sample is weighed. A pinch of anti-bumping granules is added.
Quartz wool is placed at the bottom of the soxhlet extractor.
The sample is weighed in a bag before adding to soxhlet. The bag is weighed after addition. The weight of sample is recorded on sample card. Sample ID is marked on side of soxhlet with marker. The soxhlet is attached to the round bottomed flask and then placed in an electrothermal mantle.