William,

Thanks for posting this. 

It seems that there are quite a few unpublished round robin's out 
there.  Would it be possible to get them all on one web page, possibly 
posted on a web page on Isogeochem for example?  What do other think?

Paul Brooks.



William Mark wrote:
>
> Oops.... Sorry - I had the % columns swapped around (thanks Doug).
>  
> *Lab Consensus*
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> *Isotope Results*
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> *NIST ID*
> 	
> d15N
> 	
>  
> 	
> d13C
> 	
>  
> 	
>  
> 	
> Number
> 	
>  
>  
> 	
> AVG
> 	
> STDEV
> 	
> AVG
> 	
> STDEV
> 	
>  
> 	
> of Labs
> 	
>  
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> Bovine Liver 1577b
> 	
> 7.65
> 	
> 0.25
> 	
> -21.59
> 	
> 0.25
> 	
>  
> 	
> 10
> 	
>  
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> Peach Leaves 1547
> 	
> 1.98
> 	
> 0.27
> 	
> -26.03
> 	
> 0.16
> 	
>  
> 	
> 10
> 	
>  
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> Coal (Subbit.) 2682a
> 	
> 2.24
> 	
> 0.37
> 	
> -24.37
> 	
> 0.26
> 	
>  
> 	
> 8
> 	
>  
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> Coal (Bit.) 2685a
> 	
> 2.59
> 	
> 0.52
> 	
> -23.82
> 	
> 0.30
> 	
>  
> 	
> 8
> 	
>  
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> Buffalo River Sed. 2704
> 	
> 3.86
> 	
> 0.34
> 	
> -19.86
> 	
> 0.16
> 	
>  
> 	
> 10
> 	
>  
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 'n' varied greatly from Lab to Lab but all material averages had > 50 
> data points
> 	
>  
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> *Elemental Composition*
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> *NIST ID*
> 	
> %N
> 	
>  
> 	
> %C
> 	
>  
> 	
>  
> 	
> Number
> 	
>  
>  
> 	
> AVG
> 	
> STDEV
> 	
> AVG
> 	
> STDEV
> 	
>  
> 	
> of Labs
> 	
>  
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> Bovine Liver 1577b
> 	
> 10.19
> 	
> 0.16
> 	
> 49.13
> 	
> 1.02
> 	
>  
> 	
> 7
> 	
>  
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> Peach Leaves 1547
> 	
> 2.82
> 	
> 0.12
> 	
> 46.01
> 	
> 1.15
> 	
>  
> 	
> 7
> 	
>  
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> Coal (Subbit.) 2682a
> 	
> 0.98
> 	
> 0.06
> 	
> 61.55
> 	
> 2.56
> 	
>  
> 	
> 5 *
> 	
>  
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> Coal (Bit.) 2685a
> 	
> 1.07
> 	
> 0.10
> 	
> 63.28
> 	
> 2.25
> 	
>  
> 	
> 5
> 	
>  
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> Buffalo River Sed. 2704
> 	
> 0.20
> 	
> 0.01
> 	
> 3.50
> 	
> 0.25
> 	
>  
> 	
> 7
> 	
>  
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 	
>  
> 'n' varied greatly from Lab to Lab but all material averages had > 50 
> data points (except *)
>
>
>
>
> Cheers,
>
>
>
>
>
>
>
> Bill Mark
>             Isotope Technician
>             Environmental Isotope Lab
>             University of Waterloo
>             Phone (519)-888-4567 Ext 36747
>             FAX (519)-746-7484
>              _http://www.uweilab.ca/_
>
>  


-- 
Mr. Paul D. Brooks,
Dept. Integrative Biology MC3140,
3060 Valley Life Sciences Building,
UC Berkeley, 94720-3140.

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