Contacts

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Rhys Gwynne

Laboratory Manager
519-888-4567 Ext. 35838

Rhys (M.Sc. Waterloo) is responsible for the management and operation of the Environmental Isotope Laboratory, its staff, equipment, student users, and many University of Waterloo and external clients, with the primary objective of developing and applying isotope technology in environmental and geological research.

Reem El Mugammar

Administrative Officer

Reem (B.A. Waterloo) is primarily responsible for the complete range of administrative activities required to facilitate the effective day-to-day operation of the Environmental Isotope Laboratory (EIL). This includes facilitating research, financial oversight, and numerous organization and coordination functions.

Kuncheng Zhao

EIL Client Services
Location: EIT 5025

Cheng (B.Sc. Waterloo) is primarily responsibile for working with faculty, staff and external clientele providing client correspondence, maintaining logs, files and sample numbers. She is also be an integral part of the team supporting isotope analyses in the Environmental Isotope Laboratory (EIL) by performing analytical sample preparation and measurements as required.

Darlene Bridge

Radiocarbon Technician

Darlene (B.Sc., Queen’s) is responsible for the preparation of organic and inorganic radiocarbon samples for dating at AMS facilities. Her responsibilities include the extraction of DIC from water for 13C DIC determinations and break-seal combustion sample preparations for AMS. 

Justin Harbin

Senior EA-IRMS Technician

Justin (BSc, Wilfred Laurier) oversees solid sample, elemental analyzer (EA) based isotope analysis. Covering the preparation and analysis of δ13C and δ15N in solid samples on the Thermo Delta XP IRMS coupled to a Costech 4010 continuous flow isotope ratio mass spectrometer (CF-IRMS); the determination of δ34S in inorganic and organic materials on a Costech 4010-EA coupled to an Elementar PrecisION CF-IRMS; and δ18O analysis of solid samples using aElementar Pyrocube EA and Elementar PrecisION CF-IRMS. Justin assists in troubleshooting, maintenance and repair of the mass spectrometers and related peripheral equipment, as well as updating computer hardware and analytical / operating software. 

Xinze Lu

Sulphate/Nitrate/Water/Carbonate IRMS Technician

Xinze Lu (PhD, Waterloo) is responsible for the preparation and analysis of dissolved sulphate and nitrate samples for δ15N, δ18O and/or δ34S isotope determination and δ2H and δ18O in water by OA-ICOS. 

Oana Goli

Inorganic Halogen IRMS Technician

Oana (M.Sc. Waterloo) is responsible for organic and inorganic samples for 37Cl and 81Br isotope analyses and the operation and maintenance of the IsoPrime-DI/CF/GC, Delta-V-DI/CF/GC and MAT 253-DI/CF/GC stable isotope mass spectrometers. She also provides back up for organic samples for 2H and 13C on the Thermo-Finnigan DeltaplusXP gas Chromatograph-combustion-isotope ratio mass spectrometer (GC-C-IRMS) and the IsoPrime Gas Chromatograpgh-combustion/MultiFlow-isotope ratio mass spectrometer (GC/MF/-IRMS). 

Amy Kalbfleisch

Tritium Technician

Amy (B.Sc., McMaster) is responsible for initial sample pre-treatment determination and execution (ion exchange, Azeotropic distillation), electrolytic enrichment, preparation, final analysis (liquid scintillation counting) and result calculation of samples for tritium analysis.

Nathan Buggeln

CSIA IRMS Technician

Nathan (BSc, Waterloo) is responsible for the operation and maintenance of the Thermo-Finnigan Delta V Gas Chromatograph-combustion/pyrolisys-isotope ratio mass spectrometer (GC-C/P-IRMS) and the IsoPrime Gas chromatograph-combustion/Multiflow-isotope ratio mass spectrometer(GC/MF/-IRMS). Nathan assists in troubleshooting, maintenance and repair of the mass spectrometers and related peripheral equipment.