# Coulter Multisizer 4 Coulter Counter

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

## Key facts

- Public buyer: [Durham University](/buyers/durham-university/contract-awards)
- Contract winner: MERITICS LIMITED
- Award value: £0
- Award date: 25 January 2019
- Published: 29 January 2019
- Contract start: 28 January 2019
- Contract end: 27 January 2020
- Stage: awarded
- Procurement category: goods
- Notice ID: d26d419d-1ea9-40da-b8e0-9cb245d140be-266481
- OCID: ocds-b5fd17-7e797e9a-50ec-4769-b185-70a5d5b7e3ee

## Description

Durham University require the purchase of a Coulter counter which is an apparatus for counting and sizing particles suspended in electrolytes\. It is used for cells, bacteria, prokaryotic cells and virus particles\. A typical Coulter counter has one or more microchannels that separate two chambers containing electrolyte solutions\. As fluid containing particles or cells is drawn through each microchannel, each particle causes a brief change to the electrical resistance of the liquid\. The counter detects these changes in electrical resistance\.

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## Source

[View the original notice on Contracts Finder](https://www.contractsfinder.service.gov.uk/Notice/d26d419d-1ea9-40da-b8e0-9cb245d140be-266481)