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- Posts: 5
- Joined: Wed May 24, 2023 12:37 pm
- Location: Germany
For a while now we have been getting consistently low or no responses for the negative mode compounds, while the positive mode has good response. Running the negative compounds alone, in a method without switching, gives good response. Our technician has replaced the capillary voltage power supply and the high energy diode, neither changed the situation.
Note that we have two other equipment setups of exactly the same type in our lab and neither are experiencing this problem.
We are at a loss for how to continue troubleshooting this. Has anyone seen this before or have any ideas?