Current fees for Medical School Arm of MS Resource

              SERVICE										PRICE

		      ISOTOPIC RATIO MEASUREMENTS


Breath [13C]O2  enrichment   		$ 16.00 ($8.00 for batches of 50 or more)
[15N] or [2H] enrichment     		$40.00 ($20.00 for batches of 50 or more)
[18O] enrichment	     		$30.00 ($15.00 for batches of 50 or more)
GC-MS isotope		     		$40.00 ($20.00 for batches of 50 or more)
enrichment in metabolites

	      QUANTATIVE GC/MS OF METABOLITE CONCENTRATION


If in addition to isotope	$20.00 ($10.00 for batches of 50 or more
ratio GC/MS			in addition to basic price)
Quantitative GC/MS		$40.00 ($20.00 for batches of 50 or more)

                         QUALITATIVE GS/MS (EI,CI)

					Please inquire about pricing for analyses 
					of multiply labeled compounds and other
					services not listed above.