Thermo Scientific DSQ II, Hardware Manual

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Maintaining the DSQ II
Running Benchmark Tests
24 DSQ II Hardware Manual Thermo Scientific
Running Benchmark Tests
To confirm that your instrument is clean and in good working order, we recommend you
perform benchmark tests and record the results. For more information, refer to the
DSQ II
User’s Guide .
1. Run a benchmark QC (quality control) test. A good benchmark test is the mixture of
octafluoronaphthalene and benzophenone, which is included with the instrument.
2. Compare the results to previous results.
3. Clean the ion volume only when the tested performance of your system decreases
significantly from your benchmark test results.
4. Run the benchmark test again and compare the results.
5. If the DSQ II is still not operating at optimal performance, clean the lenses, ion source
assembly, and prefilter. The frequency in which you clean the DSQ II depends on the
types and amounts of samples and solvents you introduce into the instrument. In general,
the closer a component is to the sample introduction point, the faster it gets dirty. For
example, you need to clean the ion volume more often than other parts because it is the
first component to come in contact with the sample.
CAUTION - INSTRUMENT DAMAGE. This section relates strictly to the parts and
components listed in this chapter. Use caution when using these cleaning procedures for
other parts. Some components can be damaged if exposed to abrasives, solvents, or heat.