Chromatography Forum

fahim.khattak wrote:
me too was facing the same problem. there is simple solution to this problem that is thermal cleaning, just increase your FID temperature. suppose if you are operating FID at 220 degree celsius, change it 280 or 300 degree celsius with continuous flow of carrier gas for about 120 to 180 minute. mine 100 percent sure your problem will solve.



Has to be worth a try Korffski (as long as the column will stand it). If you do try it please post whether it works.

Peter

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Peter Apps

keep the column oven normal as per method only increase FID temperature, so no chance of damage to column..

fahim.khattak wrote:
me too was facing the same problem. there is simple solution to this problem that is thermal cleaning, just increase your FID temperature. suppose if you are operating FID at 220 degree celsius, change it 280 or 300 degree celsius with continuous flow of carrier gas for about 120 to 180 minute. mine 100 percent sure your problem will solve.



Has to be worth a try Korffski (as long as the column will stand it). If you do try it please post whether it works.

Peter

_________________
Peter Apps

keep the column oven normal as per method only increase FID temperature, so no chance of damage to column..

Taking the detector temperature much above the column maximum can generate activity in the part of the column that is heated by the detector block.

Peter

All,

The thermal cleaning seems to have worked. Ran the system for about 4 hours after baking and the noise hasn't come back.

Thanks,

All,

The thermal cleaning seems to have worked. Ran the system for about 4 hours after baking and the noise hasn't come back.

Thanks,

Excellent, good to know. Kudos to fahim.

Peter