User Manual of CIC-D100 Ion Chromatograph
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Solution: Find out the blocking points and replace the flow path components according to
the step-by-step elimination method.
3. The protection column pressure increases
Solution: Replace the sieve plate at the inlet of the protection column.
5.3 Large baseline noise
1. The instrument balance time is short
Solution: Flush with lotion until the instrument is stable.
2. Flow path
There are bubbles in infusion pump
Solution: open the exhaust valve to pump air bubbles.
The ultra-pure water filter head is blocked, and bubbles are generated under negative
pressure caused due to suction.
Solution: Replace the filter head or put the filter head into 1: 1 pure water/nitric acid
solution or absolute ethyl alcohol for ultrasonic cleaning for 5 min.
There are bubbles in the main flow path
Solution: Remove the chromatographic column and flush with water to remove bubbles.
④
There are bubbles in the chromatographic column
Solution: Flush the chromatographic column with degassed eluent at low flow rate to
eliminate bubbles.
⑤
The reference electrode has been used for too long; it is not soaked in saturated
potassium chloride solution after use.
Solution: Activate or replace the reference electrode.
⑥
The working electrode has not been polished for too long
Solution: Clean, polish or replace the working electrode.
⑦
Removal of air bubbles from amperometric detection cell
Solution: block the outlet pipe with fingers for a few seconds and repeat for several times.
3. Instrument
Poor grounding
Solution: Pay attention to grounding.
Voltage instability, or interference
