You can have a look to D. Danho, N. Naulet and G.J. Martin
Analusis 1992 (20) p179-184
----- Original Message -----
From: Uli Flenker; Raum 704 <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, January 16, 2001 7:28 PM
Subject: 13C and 15N in Caffeine
> Dear list,
> has anybody experience with carbon and nitrogen isotopes (natural
> abundance) in caffeine? If there is any variation, are there isotopic
> signatures of different sources?
> A quick look at the literature (PubMed) gave no results.
> Many thanks in advance, and ...
> ... happy new year to everyone!!!
> Uli Flenker
> Institute of Biochemistry
> German Sports University Cologne
> Carl-Diem-Weg 6
> 50933 Cologne / Germany
> Phone 0049/0221/4982-493