John Madden

John Madden

Dr. John Madden is a Staff Scientist at Thermo Fisher Scientific located in Sunnyvale, CA, USA. He is an Analytical Chemist with over 20 years experience in the field of Ion Chromatography. During his nearly 20 years at Thermo Fisher Scientific, he has been a Product Manager for IC Consumables and a Product Specialist for Chromeleon.

He manages a portfolio of Cation Exchange Chromatography Columns including the recently released IonPac CS21-Fast-4µm column. John completed his Ph.D. degree in Analytical Chemistry from the University of Tasmania, Hobart, Tasmania, Australia in 1999. During John’s Ph.D. he developed and tested several ion exchange retention algorithms for Ion Chromatographic separations.

Contact Information: john.e.madden@thermofisher.com; 408-481-4210