Sorry I must have touched something that sent the message without my
permission, let's continue.....

I am very interested too.
Actually I was thinking about a method to re-use the Cr as well....greedy
Italian!!! What about something definitive like Br-pentaphlourine??(I hope
the spelling is correct, otherwise sorry but it is Sunday!!!)
Is it science fiction? Hope not!
So please if you have any smart advice, let all us know about it and do not
reply only to Eric.

Cheers
Francesca


>
>>Does anyone out there have any brilliant ideas for cleaning and re-using
>>the Cr-filled quartz reactors for the Finnigan H/Device?  We are getting
>>really good results but it is expensive to make new quartz reactors.
>>Although Cr2O3 can be slowly dissolved in acid, the small diameter of the
>>reactor opening makes it difficult to do this.  We are thinking of a
>>pump-through system that slowly dissolves the Cr2O3.  Has anyone tried
>>such a thing, or perhaps has some suggestions?
>>
>>Thanks,
>>
>>Eric Steig
>>________________________________________________________________________
>>Eric J. Steig, Assistant Professor           tel: 215/573-5978 office
>>Department of Earth & Environmental Science  tel: 215/898-9890 lab
>>University of Pennsylvania                   FAX: 215/898-0964
>>251 Hayden Hall, 240 South 33rd Street       email: [log in to unmask]
>>Philadelphia, PA 19104-6316
http://www.sas.upenn.edu/~esteig
>>
>>
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Francesca Serra                                         Tel. +39 040 226320
Centre for Isotope Geochemistry                         Fax  +39 040 226320
Geokarst
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I-34012

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