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Unlock the secrets of your samples at Refeyn's Mass Photometry Demo Day, taking place at the Babraham Research Campus on 20 June, 2024, starting at 9:00 am. Refeyn will present a seminar on mass photometry at this event, along with a live demonstration of the TwoMP mass photometer. There will be a lunch following the workshop. Attendees are invited to bring their own samples for analysis (see details below). The presentation and demo will be delivered by: 


Racha Majed

Technical Sales Specialist


Roland Worth

Field Application Scientist

Sample requirements

Mass Range:

30 kDa to 5 mDa


Sample Concentration:

Ideally stock solutions should be 1 μM or higher (for proteins & biomolecules) or 500 ng/ μL or higher (for nucleic acids) as samples will be diluted to 5-20 nM (proteins) or 20-50 ng (nucleic acids) prior to measurement.


Sample volume:
≥ 10 µL for stock solutions, but the volume per measurement will be 10-20 µL


Buffer Requirements:
Your preferred buffer can be used for the measurement of your samples. Please provide us with 5 mL of your buffer for dilution purposes, equilibrated to room temperature (RT). In the event your buffer contains any of the following “additives” we kindly ask you to have buffer without these additions present (also 5 mL):

  • Urea

  • Gnd-HCl

  • Glycerol, Sucrose, or other sugars (only if above 10 %)

  • Detergent

  • Inorganic solvents (e.g. DMSO only if above 5-10 %)

Seats are limited. Secure your spot today!


Mass Photometry Demo Day


Queen Ediths Room, the Cambridge Building, Babraham Research Campus, Cambridge, CB22 3AT.

Register for the event

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Refeyn TwoMP : The flagship mass photometer


For molecular mass measurements with unmatched sensitivity, speed and simplicity of use. Refeyn’s second-generation mass photometer, the TwoMP, offers wider mass range, and improved resolution and statistics.

  • High-fidelity measurements of molecular mass

  • Minimal quantities of sample required

  • ​Intuitive acquisition and data analysis software 

  • ​Easy setup – a compact, benchtop instrument with minimum installation requirements

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