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Should I switch off my detector when not in use?

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Applies to

Electrochemical detection

Summary

No, the detector and cell are developed for continuous use. The detector is kept ON as long as the HPLC is running. Only switch off the system if not in use for more than a few days. The cell is then taken apart, cleaned with demi water, and stored dry. A salt bridge REF is stored in saturated KCl solution to prevent drying out.

To switch off a detector for longer period of time:

  • switch off the cell and disconnect it from the HPLC system.
  • disassemble the cell and clean with demi water and dry it
  • NEVER switch off the system with corrosive mobile phase in it !
  • before switching off the HPLC system see manufacturers recommendation for instructions.

For more details read the recommendations in this KB.

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