Hi Folks,
                 I need to arrange some verification of figures for our 'working'
standards. If anyone would be willing to analyse our Ammonium sulphate &
KNO3 for delta 15-N, Sucrose for 13-C and a finely ground vegetation
sample for both isotopes I'd be very grateful and would, of course,
reciprocate with similar analyses.
                 Please contact me if you could help.

                                                                             Darren.