uwEILAB is one of the largest isotope labs in the world with eleven isotope mass spectrometers, seven liquid scintillation counters and preparation lines for stable and radioactive isotope analyses. Recent major developments include the acquisition of systems to analyze carbon, nitrogen and sulphur stable isotope ratios in micro quantities of organic compounds present in lake sediments, pools, aquatic organisms, etc. The systems are heavily used by biologists working on food chain studies. New research possibilities in the field of organic contaminants in groundwater have been opened with the acquisition of three on-line GC-C-IRMS units that perform isotope analyses of carbon and hydrogen on individual organic compounds separated out of mixtures.

The Environmental Isotope Laboratory carries out isotopic analyses of the following types of samples:

SAMPLES	SAMPLES REQUIREMENTS
Water	Sample requirements for Water
Carbonates	Sample requirements for Carbonates
EA-IRMS	Sample requirements for EA-IRMS
Gas	Sample requirements for Gas
GC-C-IRMS 13C	Sample requirements for GC-C-IRMS 13C
GC-C-IRMS 2H	Sample requirements for GC-C-IRMS 2H
Cl-Solvents	Sample requirements for Cl-Solvents

CLIENTS

UNIVERSITY ASSOCIATED CLIENTS

University of Waterloo

• Earth Sciences: Profs. R. Aravena*, J. Barker, D. Blowes, J. Cherry*, M. Coniglio*, T. Edwards*, S. Frape*, R. Gillham, P. Karrow, A. Morgan, R. Nicholson, B. Parker, E. Reardon, W. Robertson, D. Rudolph, S. Schiff*.
• Biology: Profs. H. Duthie, G. Power, D.Barton, G.Dixon
• Chemistry: Prof. Sharma Geography, Profs. Gardner, B. Warner.

Other Universities

• Alaska, Prof. Jeffries
• Alberta, Profs. Jones, Bauer, Biological Sciences
• Calgary, Prof. Harris, Smith, Geography
• Carleton, Prof. Dix, Michel
• Cincinnati, Prof. Davis
• Cornell, Prof. Drexler
• Florida, Prof.Conway
• Geneva, Prof. Dominik
• Guelph, Profs. Brookfield, Davidson-Arnott, Protz, Earth Science; Prof. Larson, Botany
• Hebrew Univ. Of Jerusalem, Prof. Nativ
• Iowa State, Prof. Simpkins
• Kansas State, Prof. Harvey
• King Abdulaziz, Saudi Arabia Bakor, Prof. Basmaci
• Lakehead, Prof. Stewart, Anthropology
• Lamont, Profs. Doherty Clark, Severinghaus
• Laval, Profs. Maule, Stein
• Laurentian, Prof. Cormie
• Lawrence. Berkeley Labs, Prof. Truesdell
• Manitoba, Prof. Chow, Geology; Prof. Eilers, Soil Science, Thomas, Geological Engineering
• McGill, Prof. Pollard, Geography;Profs. Mazumder, Rasmussen, Biology
• McMaster, Profs. Ford, Risk, Schwartz Geology; Prof.MacDonald, Geography
• Memorial, Prof. Gale, Geology; Prof. MacPherson, Geography
• Michigan, Profs. Richards, Walter, Budai
• Michigan State, Profs. Larson, Ostrom
• Nevada, Prof. Flynn
• New Brunswick, Profs. Bleeker, Noblke, Geology; Prof. Cwynar, Biology
• North Dakota, Prof. Matheney
• Oregon, Prof. Keller
• Ottawa, Prof. Clark, Geology
• PennState, Profs. DeWallie, Johnson, Swistock
• Purdue, Prof. Fritz
• Queen's, Profs. James, Remenda
• Quebec, Prof. Couture
• South Carolina, Prof. Caruccio
• Southern Methodist University, Prof. Borthwick
• St. Mary's, Prof. Jones
• Syracuse, Profs. Chamberlain, Seltzer, Siegel,
• Tennessee, Prof. Gunderson
• Toronto, Profs. Bray, Howard, Geology;Profs. Beuken, Kiesser, IsoTrace; Profs.
• Kendall, Lewkowicz, Geography;Prof. Kotanen, Biology
• Trent, Profs. Buttle, Veinott, Cornett
• Vermont, Prof. Morseeli
• Washington State, Prof. Larson
• Western, Profs. Burn, Fleet, Yaneul, Geology;Prof. Hanford, Zoology
• Western Michigan, Profs. Kehew, Passero, Tolliver
• Wilfrid Laurier, Profs. English, Hewitt Geography
• Windsor, Prof. Sklash,
• Winona State, Prof. Hoffman
• Wisconsin, Profs. Bradbury, Levy, Muldoon,
• Wright State, Prof. Evers
• York, Profs. Hill, Roulet
• Yucatan, Prof. Gaona