Hi Christian

> I have conducted a series of experiments to see what effect oven drying
> at 60°C and freeze-drying has on a variety of ammonium- and
> nitrate-containing solutions either in low or higher concentrations
> (standards dissolved in bidest water) regarding the effects on recovery
> and nitrogen isotopic composition ... I will have a look for the exact
> results and mail them to your personal email address - or if there is
> some handwaving, to the isogeochem list - tomorrow.

The list would be good... interested to know what you got!!

Yours


Andrew




Dr A.M.Johnston
SPDU
Scottish Crop Research Institute
Invergowrie
Dundee
DD2 5DA
Scotland

Tel No: (44) 1382 562731 ext 3732
Fax No: (44) 1382 562426