Dear Rebecca and others interested in nitrate O18.
The stable isotope group at the U.S. Geological Survey in Menlo Park,
has been doing N15 and O18 of nitrate for several years. We recently
had two papers accepted for publication, and are preparing to put the
instructions for collection, and processing on our web site. My paper
is scheduled for publication by November in the Can. J. Fish. Aquat.
If you would like a copy of the instructions, and don't want to wait
for the web site to be set up, send me your address.
Rebecca Hood wrote:
> Who out there is out there doing 16O-18O ratios on nitrate? if so what's the
> latest technique and easiest ?
> Someone asked me for this information, as we don't do it here yet I would
> be interested to find out how and what are the pitfalls.
> Samples they are thinking of are soil-water samples, at natural abundance
> levels. It has some interesting potential....
> I would be most grateful for all suggestions, comments, references etc...
> Thanks in advance for any assistance........
> Long live isogeochem....
> Rebecca Hood
Cecily Chang MS 434
U.S. Geological Survey
Menlo Park, CA 94025
tel 650 329 4471
[log in to unmask]