15Perform a Digestion
Vessel Removal
1. Allow the vessels to cool down in cavity for 15 minutes before opening the microwave door.
WARNING
To prevent the possibility of severe burns, ensure that gloves and protective gear as outlined in your safety
program are worn.
Proper precautions must be taken to avoid contact with acids or acid vapors. Protective gear should be
worn as outlined in the user’s safety program for hazardous materials and the acid manufacturer’s safety
data sheet. Refer to these guidelines for proper handling and disposal of the acids.
2. If applicable, disconnect ber optic probe.
3. Remove the turntable from the instrument. Keep the vent holes facing away from the user when transportating
the turntable.
4. If applicable, remove the ber optic probe from the control vessel.
5. Remove the vessel assemblies from the turntable one by one, keeping the vent hole pointed away from the
user, and place them in the rack.
6. Place the rack containing the vessels into a fume hood.
7. With the vent hole pointing away from the user and into a fume hood, carefully loosen the caps, allowing them
to vent.
8. Remove the cap and plug. If the vessel plug is difcult to remove, then allow for additional time to cool for
easier removal.
9. Transfer the sample from liner and proceed with work-up.
10. If liquid is noted on the turntable or sleeves, wipe it off with a damp paper towel and allow to dry. Leave
sleeves in turntable.
CAUTION
Never pour sample or liquid from liner with sleeve in place.
11. Clean vessels as outlined in “Vessel Cleaning ” section.
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