No signal at negative mode
Posted: Thu Oct 15, 2009 2:30 am
Dear All,
We are using an API2000 in our lab. Recently, we encountered a "weird" problem. During the tuning of a certain compound, we tried to do both positive and negative mode. Our signal with positive mode is very good. However, we didn't get a signal using the negative mode. Even running the solvent alone did not produce even a tiny bit of signal. Could you please advice what the probable cause could be? What should we do?
Appreciate any advice. Thanks!
We are using an API2000 in our lab. Recently, we encountered a "weird" problem. During the tuning of a certain compound, we tried to do both positive and negative mode. Our signal with positive mode is very good. However, we didn't get a signal using the negative mode. Even running the solvent alone did not produce even a tiny bit of signal. Could you please advice what the probable cause could be? What should we do?
Appreciate any advice. Thanks!