User guide

Multimode Source for 6100 Series Single Quad LC/MS User Guide 19

Basic Operation and Maintenance 1

To clean the multimode source weekly

The cleaning procedure for cleaning the multimode source weekly is similar to

the procedure for cleaning the source daily. The main difference is that the

multimode source is removed from the instrument.

Before you begin, check that you have:

• Abrasive paper, 8000 grit (p/n 8660-0852)

• Cloths, clean, lint-free (p/n 05980-60051)

• Cotton swabs (p/n 5080-5400)

• Gloves

• Mobile phase from the current method, or clean isopropanol, reagent

grade or better

• Wash bottle

• Water, reagent-grade or better

1 Do the steps in “To remove the multimode source” on page 29.

2 Fill the spray chamber with clean mobile phase, or with a mixture of

isopropanol and water.

3 Scrub the corona insulator and the interior of the spray chamber with a

clean cotton swab.

4 Empty the spray chamber.

5 Wipe the interior of the spray chamber with a clean, lint-free cloth.

NOTE

Recent residue should be soluble in the mobile phase. If you are not sure what mobile

phase was used recently, a mixture of 50% isopropanol and 50% water works well as a

general cleaning solution.

WARNING

Some mobile phases are hazardous chemicals. Use caution that is appropriate for

the current mobile phase.

WARNING

The inside of the spray chamber has sharp edges, such as on the separator. Pay

close attention when you wipe the interior of the spray chamber.