Maintaining the API Source and Replacing the
H-ESI Needle
Cleaning the API Source Housing
Replacing the H-ESI Needle
Thermo Scientific
Clean the housing as necessary. Follow all safety precautions in the OptaMax NG Ion Sources
User Guide regarding the installation and removal of the API source. For any additional
service, contact your local Thermo Fisher Scientific service engineer.
1. After the API source cools to room temperature, remove it from the MS.
2. Put on appropriate personal protective equipment, in particular safety glasses and
chemical resistant gloves.
3. Under an appropriate fume hood, rinse the interior of the housing with lint-free tissues
sprayed with UHPLC/MS-grade methanol.
4. Allow the housing to dry before you install it on the MS.
Refer to the OptaMax NG Ion Source User Guide or view the video on the Thermo Fisher
Scientific website. Go to
thermofisher.com.
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