Discover what you're missing now
Enabling greater analytical depth with electron-based fragmentation
Unprecedented speed & simplicity at half the cost.

Our company is committed to providing customers with superior fragmentation at a fraction of market price. Learn how e-MSion is revolutionizing the field of mass spectrometry with our ExD cell.

What Can e-MSion Do for You?

e-MSion, Inc. aims to advance proteomics research by improving the accessibility of electron-based fragmentation in mass spectrometry.  Our name is an amalgam of electrons, Mass Spectrometry, and ions. We offer a device, the ExD Cell, that enables a type of fragmentation, similar to electron-capture dissociation (ECD), as an add-on to virtually any type of mass spectrometer. This unique type of fragmentation produced by our device enables fast, comprehensive characterization of ions without the experimental complexity of other competing technologies on the market today.

e-MSion is the first to make ECD technically feasible on instruments that are in the low- to mid-price range. As a result, our device makes ECD more accessible “for the masses.” Our universally-compatible ExD Cell device can give life science researchers the ability to more comprehensively characterize their molecules of interest.

ECD for the Masses

Improving access to the powerful technique of ECD

Groundbreaking Technology

Advancing life sciences with our ExD technology


AUGUST 31ST 2021

We’re teaming up with MS Vision to supply electron-based fragmentation to Europe

July 6th 2020

Early Adopter Dr. Liangliang Sun presents on Improving Proteoform Separation and Characterization using CEMS and ECD at Agilent Webinar

June 23rd 2020

Upcoming Agilent Webinar with Early Adopter Dr. Brandon Ruotolo on the Role of Collision Induced Unfolding in BioTherapeutics

May 31st 2020

e-MSion ExD AQ-250​ Option available for entire Agilent Q-TOF family

May 31st 2020

16th Uppsala Conference on Electron-Based Fragmentation Postponed Until 2021
Featured Publications
Enhanced Top-Down Protein Characterization with Electron Capture Dissociation and Cyclic Ion Mobility Spectrometry
Improved Protein and PTM Characterization with a Practical Electron-Based Fragmentation on Q-TOF Instruments​
Direct Determination of Antibody Chain Pairing by Top-down and Middle-down Mass Spectrometry Using Electron Capture Dissociation and Ultraviolet Photodissociation
Charge Movement and Structural Changes in the Gas-Phase Unfolding of Multimeric Protein Complexes Captured by Native Top-Down Mass Spectrometry
Top-Down Characterization of Denatured Proteins and Native Protein Complexes Using Electron Capture Dissociation Implemented within a Modified Ion Mobility...

To view more publications that feature our ExD Cell in action, please visit our Publications page.