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Can ECD be capped when only MSD in use

http://www.chromforum.org/viewtopic.php?t=15703

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Can ECD be capped when only MSD in use

Posted: Mon Feb 07, 2011 3:33 pm
by X
Hi, all,

I have an agilent 5975C with MSD (EI and CI) and ECD, I'm wondering if I can cap the ECD when I'm using MSD only for a pretty long time? I don't want the column connected to ECD undergo the oven temperature all the time.

Thank you for any comment :D

Re: Can ECD be capped when only MSD in use

Posted: Mon Feb 07, 2011 3:40 pm
by Peter Apps
If by cap you mean closing the column connection with a nut and blank ferrule then yes, you can. Leave the ECD makeup flowing (you can probably reduce the flow rate a bit) to keep atmospheric contaminants out. Reducing the temperature might prolong foil life by a little bit.

Peter

Re: Can ECD be capped when only MSD in use

Posted: Mon Feb 07, 2011 6:31 pm
by X
Thank you very much, Peter. I'll remove the column and cap the injector and ECD.

If by cap you mean closing the column connection with a nut and blank ferrule then yes, you can. Leave the ECD makeup flowing (you can probably reduce the flow rate a bit) to keep atmospheric contaminants out. Reducing the temperature might prolong foil life by a little bit.

Peter
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