Thermo Scientific Dionex AutoTrace 280, Руководство оператора

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3 • Operation and Maintenance
Doc. 065330-05 03/2020
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5. When the system pauses the first time, insert the sample lines into a
clean container filled with a solvent.
6. If the solvent used in Step 5 is immiscible in water: When the system
pauses the second time, remove the sample lines and insert them into
a clean container filled with an intermediate solvent. Press
CONT
when ready.
If the solvent is not immiscible in water: Go directly to Step 7 .
7. When the system pauses the last time, remove the sample lines and
insert them into a clean container filled with deionized water. Press
CONT when ready.
3.7.7 Flushing the Solvent Lines
When using samples that tend to crystallize, or corrosive solvents that
could attack valves or other Dionex AutoTrace 280 parts over time, flush
the solvent and sample lines with water or an inert, soluble solution
whenever the system will not be processing samples.
The Prime Solvents diagnostic method (#29), which is typically used for
this purpose, flushes all five solvent lines. If necessary, you can create a
customized method that flushes fewer than five solvent lines (see
Section 3.2.2 ).
To flush the solvent lines:
1. Fill the solvent reservoirs with the solvent of choice for flushing.
2. Check that the tubing is fully submerged in the solvent.
3. Swirl the solvent in the containers to rinse the outside surface of the
tubing and weights.
4. Select the Prime Solvents diagnostic method:
a. Press LOAD to display the LOADING METHOD screen.
b. Press
LOAD
to increment the displayed method to 29.
Do not use acetone as a solvent to clean the sample path; it is harmful
to the sample pumps.