Dear Noreen,


I think what Stephen means is non-collagenous proteins in teeth, e.g.
osteocalcin and enamel proteins.

Wolfram


*****************************************
Dr W Meier-Augenstein, CChem, MRSC

Environmental Engineering Research Centre
School of Civil Engineering
Queen's University Belfast
David Keir Building
39-123 Stranmillis Road
BELFAST     BT9 5AG

Tel: +44 (0)28 9033 5609 (B lab)
Tel: +44 (0)28 9027 4015 (office)
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> -----Original Message-----
> From: Stable Isotope Geochemistry
> [mailto:[log in to unmask]] On Behalf Of Noreen Tuross
> Sent: 24 October 2003 12:33
> To: [log in to unmask]
> Subject: Re: carbon and nitrogen analysis of tooth collogan
>
>
> There is no collagen in enamel.
>
> Noreen Tuross
> Laboratories of Analytical Biology
> National Museum of Natural History
> Smithsonian Institution
> 4210 Silver Hill Road
> Suitland, MD 20736
> (301) 238-3700 ex 113
>
> >>> [log in to unmask] 10/24/03 06:53 AM >>>
> Dear List Members
>
> I am looking for a lab (preferably UK based) that can extract
> collagen from tooth enamel and conduct carbon and nitrogen
> isotope analysis on the extracted collagen. The number of
> samples I am looking at doing is in the region of 90. If
> anybody can perform the analyses, or knows of a lab that can,
> I would be extremely grateful if you can drop me a line.
>
> Cheers Steve
>
> Dr Stephen Grimes
> Lecturer in Environmental Radioactivity
> School of Earth, Ocean and Environmental Sciences
> Room A422 Portland Square
> University of Plymouth
> Plymouth
> Devon
> Pl4 8AA
> UK
>
> Office. Room B513 Portland Square
> Telephone. 01752 232457
> Fax. 01752 232406
> e-mail. [log in to unmask]
>
>
> -----Original Message-----
> From: Noble Jacob [mailto:[log in to unmask]]
> Sent: 24 October 2003 06:35
> To: [log in to unmask]
> Subject: [ISOGEOCHEM] a simple question
>
> Dear list members,
>
> I have a few wells in a  deep confined coastal sandstone
> aquifer in India. These wells are about 10-15 km away from
> the coast and are showing the influence of tides. Piezometric
> levels of these wells are a few metres below msl.
> Interestingly, all these waters are fresh and show no sign of
> seawater intrusion. C-14 values indicates that they are very
> old waters.
>
> Could someone give me a hint, what exactly happening in this
> aquifer system?
>
> Thanks in advance
>
> regards
>
> Noble
>
>
>
> Noble Jacob
> Scientific Officer
> Isotope Hydrology Section
> HIRUP, Bhabha Atomic Research Centre
> Trombay, Mumbai - 400 085
> INDIA
>