The second-hand Thermo Fisher ICS-900 ion chromatograph may encounter some common malfunctions during use. Here are some solutions and suggestions for these faults:
1. The instrument cannot be started
Check the power supply: Ensure that the power plug is securely plugged in and the power circuit is working properly.
Fuse inspection: Check if the fuse of the instrument is burnt out and replace it if necessary.
Internal connection: Open the back cover of the instrument and check if the internal cable connections are loose.
2. Inaccurate or abnormal data
Calibration issue: Ensure that the instrument has been properly calibrated. Use standard solution for calibration and record baseline.
Sample and standard contamination: Check the purity of the sample and standard solution to avoid cross contamination.
Detector sensitivity: Check the sensitivity setting of the detector to ensure compliance with experimental requirements.
3. High background noise
Washing system: Clean the injection port, flow path, and detector to ensure there is no blockage or contamination.
Solvent purity: Check the purity of the reagents used, using high-purity reagents and solvents.
Temperature control: Ensure that the temperature control system of the instrument is working properly and avoid the impact of temperature fluctuations on the results.
4. Poor separation effect
Column status: Check whether the chromatographic column is aged or blocked, and replace it if necessary.
Flow rate setting: Confirm whether the flow rate setting is within the recommended range. If the flow rate is too fast or too slow, it will affect the separation effect.
Sample concentration: Adjust the sample concentration to avoid ion saturation caused by excessive concentration.
5. File save failed
Storage space: Check if the storage device of the instrument is full and clean up unnecessary files if necessary.
Software issue: Restart the software or update the software version to ensure compatibility and stability.
6. Pump malfunction
Abnormal pump pressure: Check the pressure indication of the pump. If it is too high or too low, it may be necessary to replace the sealing ring or clean the pump head.
Bubble problem: Check for bubbles in the solvent box and perform degassing if necessary.
7. Detector malfunction
Detector cleaning: Regularly clean the detector window to avoid contamination of the light path.
Light source inspection: Check if the light source is working properly and replace it if necessary.
8. Software malfunction
Restart software: Try closing and restarting the software, sometimes a simple restart can solve the problem.
Reinstall software: If the problem persists, you can consider reinstalling the software to ensure that the software version matches the instrument.
preventive measures
Regular maintenance: Regularly maintain and upkeep the instrument, clean all components, and keep the instrument in good condition.
Train operators: Ensure that operators have received professional training and are familiar with the operation and maintenance procedures of the instrument.
Record the operating status: Establish an operating log to record the usage and problems of the instrument for subsequent analysis and resolution.