18 Maintenance and Inspection
18.5 Inspection and Maintenance: Glass Insert
296
GC-2010 Plus
(2) Removing particles from the glass insert
After removing the silica wool, rinse the interior of the insert by wiping with gauze
soaked in solvent (such as acetone), etc. or soak the insert in organic solvent and clean
with an ultrasonic cleaning unit.
(3) If the the glass insert is extremely dirty
If particles and stains cannot be removed, soak the glass insert in an aqueous solution
of alkaline detergent for glass for approximately 1 day; rinse the insert with large
amounts of water, then, rinse it with organic solvent such as acetone, and let it air dry.
If the glass insert still cannot be cleaned, you can soak it in an aqueous solution of 1 N
nitric acid for 7 to 8 hours, then wash, rinse and air dry as described above.
Q Silica wool packing
To repack the silica wool in the glass insert, see “12.2 Glass Insert and Packing
Requirements”.
WARNING
Use a hood when cleaning the insert with reagents like organic
solvent and acid.
Wear protective clothing, such as goggles, gloves, and a lab coat.
If reagents get on to the skin or in the eyes, flush with copious
amounts of water and consult a medical professional.
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