
Chapter 3 Preparing Samples
3-36 PerSeptive Biosystems
3
3.3 Cleaning Sample Plates
In this section
This section describes procedures for cleaning:
•Teflon
®
plates
• Gold and stainless steel plates
WARNING
CHEMICAL HAZARD. Before handling any chemicals, refer
to the Material Safety Data Sheet provided by the
manufacturer, and observe all relevant precautions.
Cleaning Teflon
plates
NOTE: Avoid using strong organic solvents such as
acetone. Use acetonitrile if a solvent is necessary. Avoid
ultrasonic cleaning devices.
NOTE: Do not use metal brushes, abrasive surfaces, or
solid detergents to clean Teflon sample plates; they are
fragile. Avoid rubbing the surface of the plate. If necessary,
wipe gently with lint-free lab tissues.
To clean Teflon plates:
1. Rinse the plate with luke warm water.
2. If necessary, wipe gently with a lint-free lab tissue to
remove matrix.
3. Wash the plate with a 1 percent solution of a liquid
detergent.
4. Rinse with deionized water.
5. If an organic solvent is necessary, rinse with acetonitrile at
the lowest percentage that will dissolve the matrix.
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