Sherman Chao, Ph.D.  Tel: (630) 230-9378, Fax: (630) 230-9376, e-mail:

Our laboratory is situated at the southwest suburban of Chicago metropolitan area.  The address is 7320 S. Madison, Unit 500, Willowbrook, IL 60527  (west of I-294, north of  I-55 and east of IL highway 83)



Sherman S. Chao, President and Chief Technology Officer

Dr. Chao is responsible for the entire AnSol's operation.  He received MS and PH.D. degrees in Analytical Chemistry at Loyola University (Chicago) in 1974 and 1979, respectively.  He is a member of the American Chemical Society, the American Society for Testing and Materials (ASTM D03 on gaseous fuel), and the Society for Applied Spectroscopy (SAS).  He was a member of the American Gas Association (AGA) Chemical and Analytical Service Committee, the Gas Processor's Association (GPA) and the ISO/TC 193 Committee on natural gas.  Dr. Chao published and co-authored 60 plus papers and research reports.  He wrote two ASTM standards (D6228 on GC-FPD sulfur determination and D5954 on mercury measurement) for ASTM D03 committee.  He held two US patents.

Dr. Chao worked at Gas Technology Institute (GTI), formerly Institute of Gas Technology (IGT), from 1980 to 2001.  He was responsible for the overall operation of IGT's chemical research services group, which includes chemical analysis and physical testing laboratories and the certified gas program.  He headed the effort for the Gas Quality Technical Information Center at IGT.  He was co-chair of IGT;s odorization and gas quality symposia and implemented their associated technical programs.  He managed two major accounts involving external anlaytical services and gas standard certification.  He recently completed a multi-million dollar GRI project to develop new sampling and measurement techniques for trace constituent characterization in nautral gas and to survey of US natural gas at various sites. 
Dr. Chao technically supervised the analytical research and method development in the areas of energy material analysis, fuel cell/catalyst material testing, and environmental analysis using his broad expertise in spectroscopy, chromatography and physical testing.  He has investigated on natural gas separation, coal and oil shale chracterization and catalytical conversion, etc.  Prior to joining the staff of IGT, he was associated with the Central Corporate Analytical Service Department of Nalco Chemical Company for 3 years.  From 1976 to 1977, he held a post-doctoral appointment at the Univerfity of Missouri (Columbia), where he conducted research in microchemical techniques involving spectrochemical, radiochemical and electroanalytical methods of analysis.  His graduate training covers trace elemental analysis, separation science and organic/organometallic synthesis.