Cecilia,
I know that Ripan Malhi and Jason Eshleman in the US were having PTB
made for use by their company (Trace Genetics) for a time. Their
company was bought out and I don't believe they are continuing to have
PTC made, but they could give you information on who they contracted
with to have it made. Their emails are: [log in to unmask] and [log in to unmask]
best,
Rika
Dr. Frederika Kaestle
Departments of Anthropology and Biology
Indiana University, Bloomington
USA
.Cecilia Sosa wrote:
> Dear all,
>
> I am having trouble extracting DNA from some 1000yr bone samples that have
> been treated (20 yrs ago) with Paraloid B72 (ethy methacrylate co-polymer,
> also known as Acryloid B72).
>
> Does anyone have any experience with this?
>
> In the last Conference on Ancient DNA and Assoc. Biomolecules, Helen
> Donoghue suggested that I tried PTB, which would disrupt any cross-link, in
> the case that was the problem. I think it is worth trying it, but cannot find this
> product.
>
> Does anyone know where this 'strange chemical' can be purchased?
>
> And does anyone have other suggestions/ideas?
>
> Thank you very much,
>
> Cecilia Sosa
>
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