CRITCL Mass Spec


Effective March 17th, all Mass Spectrometry Core usage will move to sample submission ONLY on ALL platforms.

The Core staff will do their best to accommodate those who have current appointments on all platforms, however, they cannot guarantee they will stick to this schedule.

If you have appointments this week, please access iLab and submit your sample information via the Sample Submission forms.

All future samples will need a sample submission form in iLab before we analyze your samples. A sample drop off box is on Brandie’s office door

For the immediate future, all instrument trainings are on hold.

Please contact Brandie with questions.

Mass Spectrometry CORE Laboratory

Mass Spec Instrument

Laboratory Mission

The UNC Department of Chemistry Chemical Research Instrumentation Teaching and Core Laboratories, CRITCL, Mass Spectrometry laboratory specializes in small molecule analysis. Our services include, but are not limited to, quantitative mass spectrometry, liquid chromatography separations, fragmentation and structural elucidation, MS/MS, & MSn, mass spectrometry, complex mixture analysis, molecular formula confirmation, high resolution and accurate mass, analysis, & trace metal determination/quantitation.

The mass spectrometry laboratory provides individualized user training for undergraduate, graduate, and post-doctoral scholars of the Department of Chemistry. In addition, the facility aims to provide the highest quality mass spectrometric services possible to members of the UNC Chapel Hill Department of Chemistry, UNC campus community and surrounding Research Triangle areas.



Room 009 and 040, Caudill Laboratories, ground floor.


Monday through Friday

08:00 AM – 04:00 PM


Dr. Brandie Ehrmann

Director Mass Spectroscopy Laboratory
Brandie M. Ehrmann, Ph.D.

Caudill Laboratories 052 – Office
Mass Spec Website

Dr. Brandie Ehrmann, a mass spectrometrist with expertise in ultra-high resolution mass spectrometry and complex mixture analysis, operates the Mass Spectrometry Division of the Chemical Research Instrumentation Training and Core Laboratories, CRITCL, within the UNC Department of Chemistry. Dr. Ehrmann received her PhD. in Analytical Chemistry from Florida State University in Tallahassee, FL, in 2010. She worked for Dr. Alan Marshall, co-inventor of Fourier transform ion cyclotron resonance mass spectrometry. Her research dissertation focused on crude oil analysis; specifically, emulsion formation, emulsion breaking, and asphaltene speciation. Dr. Ehrmann joined UNC & the Department of Chemistry in January 2015. She is assisted by Evan McConnell, a departmental graduate assistant in the Hicks Group, and Paul Soma, a graduate assistant in the Glish Group. Evan and Paul handle routine analyses, assists with student training, and routine instrument maintenance procedures.


Paul Soma

Research Assistant
Paul Soma, Ph.D. Candidate

Glish Group Member, Caudill Laboratories 323

Area of Research: Investigating the conformational space of gas-phase ions and ion-molecule interactions with ion mobility-mass spectrometry.

Sample Submission and Training

There are two possible mechanisms for having samples analyzed in our facility. Samples can be submitted for analysis on a fee for service basis or students can, following required training, run their own samples on our instrumentation. Please contact Dr. Brandie M. Ehrmann for more information. We provide students/scholars with assistance in experimental design, data acquisition, and data analysis. For details on how to submit your sample to our laboratory, please click HERE.