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Y-Presstight connectors

Discussions about GC and other "gas phase" separation techniques.

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Re: Y-Presstight connectors

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Bigbear
I re use the MXT connectors, I just sonicate them in solvent for a while.

Re: Y-Presstight connectors

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chromatographer1
You are wise as well.

I was glad to see that gserrano_84 confirmed my experience with the press-tights with a GC-MS detector. The polyimide is not impermeable to air even if no gaps in the seal are achieved.

This small contamination of air is not a deal breaker but your column will last longer without the trace contamination of air. For this and other reasons when connecting my Headspace Columns to the transfer line I always used the Restek deactivated unions with a steel body and with graphite ferrules.

best wishes,

Rod
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