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IC Chromatography Peak Amount

http://www.chromforum.org/viewtopic.php?t=120204

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IC Chromatography Peak Amount

Posted: Tue Mar 07, 2023 5:08 pm
by KWhitley
Peak amount is varying from day to day. It is always reading over the known standard amount. Some days it is 10% and others 15%.

We have replaced the column, column guard, and suppressor.
I would like any ideas on how to proceed.

Re: IC Chromatography Peak Amount

Posted: Tue Apr 11, 2023 8:05 pm
by anionman
Have you checked for leaks? Get a rebuild kit and replace the rotor seal, isolation seal, and stator face. How old is the motor? My ICS-2100 is from 2009 and is on its 3rd motor.

Re: IC Chromatography Peak Amount

Posted: Wed Apr 12, 2023 4:10 am
by vmu
We have replaced the column, column guard, and suppressor.
...and made a fresh calibration, didn't you?
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