LC/MS and the Cone Wash
________________________________________________________________ Setting Up the Cone Wash
Setting Up the Cone Wash
Use the following information in conjunction with the setup and
maintenance animations on the MSQ CD shipped with the instrument.
Note.
It is necessary to use the cone wash only for dirty matrices or with
involatile buffers. Choose the cone wash solvent to give the most effective
solubility for the expected contaminants.
A pump (such as the optional AXP-MS pump) delivers solvent to the cone
wash. The PEEK tubing (green stripe is recommended) is fed through the
door and attached to a PEEK fitting which screws into the instrument on the
right of the source block cover (see Figure 3-1). The recommended flow rate
is 100 µl/min with 50:50 methanol:water.
From LC pump
to cone wash
Figure 3-1. Cone wash solvent delivery
Turn the cone wash nozzle counterclockwise until the tip of the nozzle just
touches the top of the entrance cone, and then turn on the LC pump.
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