Chromatography Forum

Hi everyone

Lately, Chromelon shows a warning that says your Eluent generator cartridge has expired. The one that I am using right now is Dionex EGC III KOH with a P/N of 074532 (Date of mfg: July 2021). However, it has not stopped the machine from running and when I checked the Eluent from command tab it is stated that the EluentGen remaining lifetime is 33%.
So, based on this number, is that okay to continue using the current EluGen up until it reaches to 0?

Thanks

The stickers that come with My EGs say Best if used by a date a couple of years from manufacture. So it's not really an expiration date, just a best use date. The COA has no information about an expiration of best use date. I have never used one beyond the best use date.