The Pacific Northwest Mass Spectrometry Group, PacMass, exists to provide a local forum for the free exchange of ideas and information concerning science, philosophy and technology as it relates to the discipline of mass spectrometry and related fields. PacMass members include scientists, students and corporate sponsors.

The quarterly meetings, which include presentations by invited speakers, are open to all at no charge. An informal social hour with refreshments precedes the lecture. While membership is not mandatory it is encouraged among non students.

We take pleasure in welcoming members and guests of the Proteomic Society to our PacMass meetings.

Contact Us

Pacific Northwest Mass Spectrometry Group
PO Box 85191
Seattle, WA

Program Chair
Martin Sadilek
Chemistry Dept, University of Washington
Seattle, WA
sadilek (at)

Assistant Program Chair
Dale Whittington
University of Washington
Seattle, WA
dalewhit (at)

Assistant Program Chair
Miklos Guttman
University of Washington
Seattle, WA
mguttman (at)

Assistant Program Chair
Abhigya Mookherjee
University of Washington
Seattle, WA
abhigm (at)

Assistant Program Chair
Mia Chagoya
Bruker Daltonics
San Jose, CA
Mia.Chagoya (at)

Assistant Program Chair
Sanjit (Sunny) Uppal
University of Washington
Seattle, WA
ssuppal (at)

Regine M. Schoenherr
Fred Hutchinson Cancer Research Center
Seattle, WA
rschoenh (at)

Yi He
University of Washington
Seattle, WA
yih2 (at)

Web Administration
Chad Lessard
Shimadzu Scientific Instruments
Port Orchard, WA

Please thank our corporate sponsors who help keep PacMass membership and dinner costs low.

If you have suggestions for a meeting topic, or know of a prominent mass spectrometrist who will be visiting the Pacific Northwest area, please contact Program Chair: sadilek (at)

If you have comments or suggestions for this web site, please email the Web Administrator for this site: