PHE-Scientific_Purchase of Virus Particle Counter

Tender description

Public Health England (PHE) requires the provision of a virus particle counting system for use in its Medical Interventions Group. The system will be used for quantification of virus banks required for the characterisation of fixed and/or live ACDP Hazard Group 2 and 3 agents. The proposed solution MUST be able to fulfil all of the following requirements: - Be able to quantify virus particles in inactivated banks of viruses (Generally chemically inactivated with aldehydes) - Be able to analyse particles within the size range of 30 nm to 10 µm [bidders must be able to provide/state their size range and accuracy in nanometres]. - Be able to calculate the concentration of virus samples within the range of 1E05 to 1E11 / mL - Be able to give an indication of the size distribution of a preparation - Be able to analyse small volumes of sample [bidders must be able to provide/state the minimum sample size that can be tested] - Provide information on specific size subtypes. - Be able to characterize individual particles in a sample population - Be ready to run without the requirement for extensive calibration - Be portable for use at different sites with a minimum of set up and calibration after moving the instrument (bidders must be able to give an approximate set up time and an instrument weight in kg) - Be suitable for processing inactivated virus samples If you feel that you can meet the above requirements, please email Mihaela.Tinca@phe.gov.uk The closing date and time for any queries is 6th April 2021 at 12:00 pm