Bio-Rad PROTEAN II XL Cell - Manual (Page 34)

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Section 11
Maintenance of Equipment
PROTEAN II ® xi cell chamber, core, clamps Rinse thoroughly with distilled water after
every use.
Glass plates, spacers, combs Wash with a laboratory detergent (catalog
number 161-0722), then rinse thoroughly
with distilled water.
Glass plates (if more stringent cleaning is
required)
Soak in a strong acid solution (chromic
acid/sulfuric acid cleaning solution) for ≥30
minutes, and then rinse thoroughly with
distilled water. A less toxic alternative is 5%
KOH in 100% methanol.
Glass tubes After use, rinse with laboratory detergent
solution, scrub out if possible, then rinse with
distilled H
2
O. Store glass tubes in chromic/
sulfuric acid solution until next use. Then
rinse thoroughly with distilled water and dry
in forced air or vacuum oven before use.
Warning: Exercise extreme caution for acid cleaning wear safety glasses, a lab coat, and rubber gloves.
Keep a container of NaCO
3
nearby to neutralize spills.