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10th January 2022  Content supplied by: Romer Labs Division Holding GmbH

Romer Labs® Introduces CytoQuant®, for Immediate Verification of Cleaning and Disinfection

Romer Labs, a leading provider of diagnostic solutions for the agricultural, food and feed industries, is announcing the global launch of CytoQuant®, the world’s first mobile flow cytometer. Powered by impedance flow cytometry, CytoQuant® quantifies bacteria and residues on surfaces in 30 seconds, giving food producers instant and actionable information about the efficacy of their cleaning, disinfection and sanitation program.

The food production environment, including equipment for processing food, is known to be a principal source of microbiological contamination. While non-pathogenic bacteria can affect the shelf life and quality of food, pathogens such as Salmonella and Listeria can cause severe illness and even death in humans. Traditional methods of hygiene control, such as the use of agar plates, are time-consuming and can take days to return results. ATP methods, while fast, do not directly detect bacteria. CytoQuant® unites the best of both worlds, enabling the immediate and direct quantification of bacteria and residues without being influenced by factors such as temperature and the presence of disinfectants.

CytoQuant® relies on impedance flow cytometry, a technology that uses electrical impedance to measure the characteristics of cells and particles. The device pumps a sample taken with a proprietary swab kit through a microfluidic flow cell containing integrated electrodes; this flow cell is called the CountCell™. Cells and particles flowing through the CountCell™ will introduce a change to the electrical current; because of their size, the non-conductivity of their cell membrane and the conductivity of their cytoplasm, bacteria leave a unique fingerprint that distinguishes them from other particles in the sample. Equipped with such precise measurements, food producers can respond appropriately according to their HACCP plan.

Eva Wanzenböck, Managing Director: “With CytoQuant®, Romer Labs is bringing perhaps the most forward-thinking solution to the hygiene control market in years. We were guided by one simple idea: too much is at stake - in terms of consumer safety and company reputation - for food producers to have to wait for days to get vital information about their cleaning and disinfection program. With its unparalleled ability to quantify both bacteria and residues in 30 seconds, CytoQuant® sets new standards in innovation.”

To learn more about CytoQuant®, visit

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Date Published: 10th January 2022

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