I always use two septa on our H/Device, SGE 3041872 www.sge.com.

Even if the chromium reactor isn't quite high enough to be flush with the
metal top of the H/Device furnace, it will still seal this way.

Hope this helps, Paul Brooks.


At 09:31 AM 4/1/05 +0200, you wrote:
> > Do you use a single septum or two septa?
>
>We use two septa (Alltech part no. 7846).
>When I put the septa on top of the ractor and the reactor is two short,
>there is always some space between the glass and the septa,
>since the septa lies on the top plate. In case this gap is two large,
>it will not seal the reactor.
>Since we had sucess with the mix I put this reactor in the drawer
>and forgot it.
>
>Robert
>--
>Robert van Geldern
>Leibniz Institute for Applied Geosciences (GGA)
>S3: Geochronology and Isotopehydrology
>Stilleweg 2, 30655 Hannover, Germany
>phone: +49-(0)511-643-2313 (office), -2539 (lab)
>fax: +49-(0)511-643-3665
><mailto:[log in to unmask]>mailto:[log in to unmask]



Paul D. Brooks,  http://ib.berkeley.edu/groups/biogeochemistry/paul.htm
Center for Stable Isotope Biogeochemistry,
Dept. Integrative Biology MC3140,
3060 Valley Life Sciences Building,
UC Berkeley, Ca. 94720-3140.

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phone (510)643-1748,
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