Analytical and Biological Mass Spectrometry


PipettingIMG_6511.jpgIMG_6551.jpgThe Analytical & Biological Mass Spectrometry Core Facility offers mass measurements of synthetic products, polymers, and whole proteins. The Core is located in room 124J in the BIO5 Keating Bioresearch Building on the North Campus. Facility personnel determine the mass of the molecular components of a sample for structural confirmation and/or identification. Services include confirmation or determination of unknowns, Proteomics, and, in the future, Metabolomics and Lipidomics.

The Core is equipped with mass spectrometers that can measure molecular masses with high mass accuracy, including a Bruker 9.4 Tesla FT-ICR, a Thermo LTQ Orbitrap Velos, and a Thermo Q Exactive Plus Orbitrap. The latter two instruments are dedicated to peptide analysis. The Core also has a second Q Exactive Plus Orbitrap that will be dedicated to the analysis of lipids and metabolites.  Mass measurements of whole proteins and polymers can be made using the Core’s Bruker Autoflex Speed MALDI-TOF. Routine analyses (low mass accuracy) of a variety of compounds are made using the Bruker AmaZon SL Ion Trap, the ABI Sciex 4000 Q-Trap and the Shimadzu GC-MS. Additional equipment in the Core includes a UV-HPLC with a fraction collector, an AKTA FPLC for protein separations, and 1D- and 2D-gel electrophoresis equipment.


 Krishan Pasawar, PhD

 Cynthia David, PhD

 Yelena Feinstein, PhD

 Kristen Kallen-Keck, BS

Krishna Parsawar, PhD
Phone: (520) 626-4161

Cynthia David, PhD
Assistant Staff Scientist
Phone: (520) 626-4173

Yelena Feinstein, MS
Research Specialist
Phone: (520) 626-4161

Kristen Kallen-Keck, BS
Analytical Research Coordinator
Phone: (520) 626-4161

Hours of Operation and Locations


Monday - Friday

9:00 AM – 5:00 PM

24/7 Access for Trained Users

Keating Bioresearch Building, Room 124J

1657 E Helen Street

Tucson, AZ 85721

 (520) 626-4161


Samples may be dropped off at the UAGC freezer in the entryway to Room 106

Links and Resources

  1. TBA


Name Role Phone Email Location
Analytical & Biological Mass Spec
General Facility Contact - Keating
Keating Bioresearch Building, Room 106
Core Facility Business Office
Billing Inquiries
Keating Bioresearch Building, 2nd Floor

Available Equipment and Resources

Name Price
Michrom HPLC  
AmaZon Ion Trap  
solariX 2XR FTMS  
Autoflex Speed MALDI TOF  
Shimadzu HPLC  
LTQ Orbitrap Velos  
Q Exactive Plus - Proteomics  
Q Exactive Plus - Metabolomics  
Orbitrap Exploris 480  
Isoelectric Focuser  
Laser Capillary Puller