About Us

		Gayle E. O’Neill, Ph.D.		President and Laboratory Director
		Hugh “Jack” O’Neill, Ph.D.		Senior Chemist
		Anne O’Donnell, M.S.		Staff Scientist
		Luba Turchinskaya		Laboratory Analyst
		Talat Ahmad		Laboratory Analyst
		Judith Domanchuk		Laboratory Analyst
		Erin Marks		Laboratory Analyst/Office Manager

Gayle E. O’Neill, Ph.D.

Gayle has over 20 years experience running an independent contract laboratory. As president, she provides the overall leadership for TEI Analytical. As laboratory director, she personally consults with each client to assess needs, develop strategies, and review results. Gayle has been a member of the American Chemical Society (ACS) National Committee on Environmental Improvement since 1991. She previously served as Chairman of ACS Chicago Section, President of the Society for Applied Spectroscopy Chicago Section, and President of the Illinois Water Environment Association. Gayle also is a member of the Water Environmental Federation and American Society for Testing and Materials (ASTM). Prior to joining TEI Analytical, Gayle was an associate chemist at the IIT Research Institute (IITRI). She holds a doctorate in chemistry from Loyola University of Chicago.

Hugh “Jack” O’Neill, Ph.D. 

Jack brings to TEI Analytical more than 40 years of experience in analytical chemistry, biochemistry, chromatography-spectroscopy, environmental chemistry, indoor air quality, industrial hygiene, instrumental analysis, metabolic studies, methods development, and trace analysis. He currently holds joint positions at Argonne National Laboratory and a consulting arrangement with IITRI. His focus at TEI is on methods development for nonroutine analyses and on building the company’s growing research and development division. At Argonne, Jack participates on numerous studies on the analysis, remediation and speciation of various military-related chemical agents, and develops analytical methods for the safe disposal of various chemical agent-contaminated wastes. He has served on several EPA and ASTM committees for air quality and and served on several National Institutes of Health study sections on carcinogenesis and chemoprevention. His professional affiliations include the American Association for the Advancement of Science; ACS; American Defense Preparedness Association; American Oil Chemists Society; Air Pollution Control Association; ASTM; Chicago Chromatography Discussion Group; Illinois and New York Academies of Science; Phi Lambda Upsilon; Sigma Xi; and the Vascular Disease Research Foundation (Board of Directors). Jack has over 40 technical publications and 50 technical presentations. He holds a doctorate in biochemistry from the Illinois Institute of Technology.

Anne O'Donnell, M.S.

Anne is an analytical chemist with a broad-range of expertise in chromatography, mass spectrometry, and GC-MS. At TEI, she focuses on the development and applications of analytical techniques and systems in the areas of environmental chemistry (air and water), petroleum chemistry, industrial cleaning chemistries and equipment, and process and product development. She also has extensive experience in the characterization/speciation of complex mixtures for petroleum products, flavor/fragrance products, and ambient, stationary source or indoor air. Anne holds a master of science in analytical chemistry from the University of Illinois Urbana-Champaign. Prior to joining TEI, she served as manager of product and process chemistry, analytical development, for Safety-Kleen, Inc. She is a member and past president of the Chicago Chromatography Discussion Group, and a member of the MCM Mass Spectrometry Discussion Group, American Chemical Society, Sigma Xi, and the American Society for Mass Spectrometry.

Luba Turchinskaya

Luba conducts classical chemistry analyses and sample preparation. She earned an associate’s degree in chemistry from Tula College of Technology and a bachelor’s degree in mechanical engineering from the Polytechnic Institute, both in Tula, Russia.

Talat Ahmad

Talat joined the TEI laboratory in 1986. She specializes in classical chemistry analyses and sample preparation. Talat holds a bachelor’s degree in chemistry from Karachi University in Pakistan.

Judith Domanchuk

Judy has worked in the TEI lab since 1992. She conducts classical chemistry analyses and sample preparation.

Erin Marks 

Erin’s versatility is an asset to the small but specialized TEI staff. In the lab, she conducts instrumentation as well as classical chemistry analyses. In the office, Erin keeps the computers running, provides software training, creates and manages databases, maintains office inventories, and processes financial transactions. Erin, who began working at TEI Analytical in 1997, holds a bachelor’s degree from Oberlin College.