Varian 4000 GC, Руководство по эксплуатации оборудования

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Cleaning the Silica Coated Electrodes
CAUTION
DO NOT use aluminum oxide, other abrasives or harsh laboratory cleaners
because this will remove the silica layer on the trap! Use only mild detergent
(pH between 6 and 7.5).
The protective surface layer of the silica-coated ion trap electrodes is very thin
(only about 1
μ
m) but durable and it is strongly bonded to the bulk stainless steel
body. However,
abrasives
such as aluminum oxide powder
must not be used
to clean the trap electrodes, because this will definitely destroy the silica layer!
Strongly acidic or strongly basic laboratory cleaners must not be used
to
clean the trap parts because they will also remove the silica layer!
•
Remove Polyimide banana plugs from the end caps.
•
Use a toothbrush and liquid hand soap or dish detergent (pH between 6
and 7.5) to gently scrub the trap parts.
•
Rinse in de-ionized water.
•
Rinse in methylene chloride or methanol.
1. Air dry or dry in an oven set to approximately 120 °C for 30 minutes.
2. Replace the banana plugs, preferably in a different hole than prior to
cleaning.
Cleaning the Quartz Spacers
1. Wipe all surfaces of the four quartz spacers with a clean, soft, lint-free cloth
that has been dampened with reagent-grade acetone. Take care to avoid
extraction of glove material by the acetone.
2. Rinse each of the quartz spacers with de-ionized water.
3. Rinse in isopropyl alcohol or methanol.
4. Dry the spacers in air or in an oven set to approximately 120 °C for 30
minutes.
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