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- Posts: 2
- Joined: Mon Apr 30, 2018 3:45 pm
ICS 1100 has AS22 column and AERS 500 carbonate suppressor. After analyzing high concentration sulfate and chloride samples the retention time was shorten and washed out column and replaced guard column and retention time is fine but the all anions of standard solution has half of the peak height compared to previous calibration. Backpressure and total conductivity are normal. 1900-1950 psi and 16-17uS.
Please help me what can I do for this problem.