Analytical and Biological Mass Spectrometry


PipettingGeorge WorkingInstrument

Overview of Services

The Analytical & Biological Mass Spectrometry Core has two locations where researchers can bring samples for analysis. Facility personnel determine the mass of the molecular components of a sample for structural confirmation and/or identification. The Chemistry Building lab focuses on confirmation of synthetic products, measurement of polymers and whole proteins, and assistance with determination of unknowns. In the Keating location, work most often involves 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.







Krishna Parsawar, PhD



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) 626-9136

Hours of Operation and Locations


Monday - Friday

9:00 AM – 5:00 PM

24/7 Access for Trained Users

Keating Bioresearch Building, Room 106

1657 E Helen Street

Tucson, AZ 85721

 (520) 626-4161

Monday - Friday

8:30 AM – 4:30 PM

Chemistry Building, Room 112

1306 E University Blvd

Tucson, AZ 85721

(520) 626-9136

Links and Resources

  1. TBA


Name Role Phone Email Location
Analytical & Biological Mass Spec
General Facility Contact - Chemistry
Chemistry Building Room 112
Analytical & Biological Mass Spec
General Facility Contact - Keating
Keating Bioresearch Building, Room 106
Core Facility Business Office
Billing Inquiries
Gould Simpson 10th Floor



Add New Purchase Order