Please, answer to the list.
 I am interested in the solutions, too, because I have similar problems
with other wood parts (leaves, stems etc) from a special region (Aral sea).

Thanks,
Deborah

At 15:54 09.07.2008 -0400, you wrote:
>        Hi all,     I’  I’m hoping the collective wisdom of
>Isogeochem can help me J  I’ve been having difficulty getting
>consistent values for an oak standard that we’  Note that this is
>natural abundance 15N in wood core material, not extracted.     I’ 
>I’  I’  I’  I’    I’m also using a blank boat
>every 3 samples to clean things out.       There’  Maybe I’m
>missing something obvious, but it’       If any of you have any
>pearls of wisdom and suggestions, I’  You can reply either to the
>list or directly to me.     Thanks in advance for your help!     Cheers,   
> Bob      ***********  Robert Michener  IRMS Laboratory Manager  Boston
>University Stable Isotope Laboratory  Department of Biology  5 Cummington
>St.    02215     Voice: 617-353-6980  Fax: 617-353-6340  Email:
>[log in to unmask]    www.bu.edu/sil/  ""  ***********     Great news: our
>book is now available! 
> Stable Isotopes in Ecology and Environmental Science, Second Edition 
> Click here  (&site=1)  to read more and to buy your print copy.           
  
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Rhein. Friedrich-Wilhelms-Universität
INRES - Pflanzenernährung
Deborah Rupprecht
Karlrobert-Kreiten-Str. 13
53115 Bonn, Germany
Phone (+049)0228-73-1631(MS), -2155(office)
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