# UKRI-1682 Mass Photometer

> Contract award record from UK public-sector procurement sources.

## Key facts

- Public buyer: [BIP SOLUTIONS LIMITED](/buyers/bip-solutions-limited/contract-awards)
- Contract winner: [Refeyn Ltd](/contract-winners/refeyn/public-sector-contract-awards)
- Award value: £164,221
- Tender value: £164,221
- Award date: 30 September 2021
- Published: 2 November 2021
- Contract start: 1 October 2021
- Contract end: 31 December 2025
- Stage: awarded
- Procurement category: goods
- Notice ID: a56adc31-f2dc-49cf-b54b-562c7fc9a23c-481536
- OCID: ocds-b5fd17-43756dda-9df4-47bc-be4e-e436747bdb8d

## Description

Supply of Mass photometer and maintenance service: It derives molecular mass not indirectly from a measurement of the hydrodynamic radius \(e\.g\. SEC or DLS\) but from light scattered by single molecules, making it uniquely suited to differentiate between particles of similar size but different mass \(e\.g\. loaded vs\. unloaded gene delivery particles\)\. As mass photometry measures the mass of each molecule individually it is uniquely suited to inform about complex samples and processes including sub-populations lost in ensemble measurements \(e\.g\. SPR, BLI or DLS\)\. The measurements can be done directly in solution, on minimal sample amounts and in a variety of buffer conditions\.

## Related contract awards

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- [GB-London: Infor Sun Systems and PA support](/contracts/ocds-b5fd17-8f521cb3-3afc-4374-a190-a80b5f746917): BIP SOLUTIONS LIMITED
- [GB-London: Civil and Structural Engineering Services](/contracts/ocds-b5fd17-37ee64f3-38a2-4708-b1fd-6030f8fa5d29): BIP SOLUTIONS LIMITED
- [GB-London: UKRI-4382 MassFluidix HC system](/contracts/ocds-b5fd17-bcafd58e-5aa6-457d-a0ff-b74ca2accee9): UK Research and Innovation
- [4165/JN/24 - Mass Photometer](/contracts/ocds-b5fd17-d8b2c148-8db4-4e28-8c0b-bd40f7e48dcf): UNIVERSITY OF SHEFFIELD
- [GSS24346 - Service contract](/contracts/ocds-b5fd17-847b3598-be2d-4daf-b3b1-cad42419d4bf): UK SHARED BUSINESS SERVICES LIMITED

## Source

[View the original notice on Contracts Finder](https://www.contractsfinder.service.gov.uk/Notice/a56adc31-f2dc-49cf-b54b-562c7fc9a23c-481536)