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Jan Kaiser, How accurate do we know 13C/12C, 18C/16O and 17O ...

Jan Kaiser, How accurate do we know 13C/12C, 18C/16O and 17O ...

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Can secondary reference materials<br />

improve this situation?<br />

Scale normalisation with<br />

L-SVEC (Li 2 CO 3 )<br />

13<br />

δ = –46.6 ‰<br />

(Coplen et al. 2006)<br />

I think this is a conventional reference value.<br />

Not a true one.<br />

Nevertheless, it <strong>do</strong>es improve our trueness.<br />

But not necessarily the accuracy.

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