please remove me from your list before I get postal!!1

---Edward Young <[log in to unmask]> wrote:
>
> Regarding O2 on a MAT 252:
>
> Our laboratory has been analyzing pure O2 as analyte with a MAT 252
for
> more than 3 years and we have incurred no difficulties of the type you
> describe. I know at least two other labs that can say the same. The
only
> effect attributable to O2 that I have encountered has to do with
cleaning
> the source. I once took the source apart for cleaning (it actually
did not
> need it, but that is another story). After reassembling and baking we
> found that there was some adsorption of O2 that persisted for several
> days. It was cured by baking with He flowing for 48 hours. I suspect
that
> the adsorption following cleaning would not have been such a problem
with
> a less reactive gas.
>
> -Ed Young
>  Earth Sciences
>  University of Oxford
>

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