The wiring and gas plumbing for the API source are internal; therefore, you can install or remove the source or change the ionization mode (H-ESI, APCI1), or APPI1)) by changing the spray insert all without the use of tools.

NOTE

The built-in drain system internally routes the solvent waste from the bottom of the API source to the back drain/waste port on the MS. Make sure that the solvent waste system is connected. For more details, see Connect the Drainage System on the MS.

The following figure shows the API source (right) and the MS mount assembly (left).

12234
No.DescriptionNo.Description

1

Ion sweep cone

3

Guide pin holes

2

Locking levers (unlocked position)

4

Guide pins

 

Prerequisites

  1. Install or Remove the Ion Sweep Cone.

Procedure

  1. Rotate the locking levers to the unlocked (down) position.
  2. Align the guide pin holes on the API source with the guide pins on the mount assembly and carefully attach the API source.
  3. Rotate the locking levers to the locked (up) position.

NOTE

For APCI experiments, install the corona discharge needle when the API source is removed.