Jennifer, from our experience both are fione.
Bob

On 23 Oct 2003 at 15:38, Jennifer McKay wrote:

> Hello Everyone,
>
> I have a rather simple, but probably loaded, question.  What is the
> best way to store organic-rich materials (i.e., dead bugs, plankton,
> plant material) to prevent any isotopic change due to degradation over
> time?
>
> The two ways we have used in the past are:
>
> 1.  Freeze-dry the material and then store it in either a fridge or
> better yet a freezer, making sure that it does not adsorb moisture
> (i.e., place the samples in zip lock bags and double bag).
>
> 2.  In a dessicator that has been evacuated.
>
> Any help/comments would be greatly appreciated.
>
> Thank you,
> Jennifer
>
>
>
>
>
> ------------------------------------------------------
> Jennifer Mckay
> Agente de Recherche / Research Associate
> GEOTOP - Universite du Quebec a Montreal
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>
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