VacPrep 061 Sample Preparation
Feb 2013 2-5
5. Using either rubber gloves or a lint-free cloth (but not bare hands), remove the sample
tube from the bowl.
6. Clean the interior of the sample tube with a brush.
7. Rinse the sample tube thoroughly with hot water. Then rinse it with isopropyl alcohol,
using a waste container to collect used isopropyl alcohol.
8. Dry the interior of the sample tube using nitrogen or helium, under a fume hood, with a
tubing extension long enough and small enough in diameter to fit inside the sample tube.
9. Insert a stopper into the sample tube, then degas the sample tube as described later in
Degassing Samples, page 2-14.
If isopropyl alcohol is unavailable, deionized water may be used to rinse the sample
tube.
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