Flow Cytometry Analysers

The facility is equipped with 2 flow cytometry analysers covering a wide variety of applications. Our systems have a range of capabilities including high throughput and high volume sampling and up to 21 simultaneous parameter collection. All our systems benefit from digital processing (Pulse Area, Height & Width measurements) and can be readily booked and reserved thorough the QReserve online calendar system. Offline analysis of data can be carried out on any of our 4 offline data analysis PCs free of charge. All our flow cytometer analysers are user run following specific training for the instrumentation from facility support staff. To organise training on a system please email: medlfacs@leeds.ac.uk.

The Cytoflex S is a digital 4 laser 13 colour flow cytometer analyser, offering improved small particle resolution and high speed/high volume sampling. Options for 2 SSC parameter detections from both the Violet 405nm laser and blue 488nm laser simultaneously for enhanced small particle detection for particles down to 200nm in size. PC is Windows 7 64bit with CytExpert V2.3 Software for data acquisition. This system is user run, but training is required from facility support staff prior to access being given.


System capabilities:

  • 4 laser system (375nm 60mW, 405nm 80mW, 488nm 50mW & 640nm 50mW excitations)

  • 13 fluorescent parameter measurement alongside Forward Scatter (FSC) & Side Scatter (SSC)

  • Possibility for blue and violet laser SSC measurements simulataneously for enhanced resolution of 200nm microparticles.

  • Low noise avalanche photodiode detectors for enhanced light detection

  • Volumetric cell enumeration

  • Up to 30,000 events/second

  • Adjustable flow rates, 10µl, 30µl, 60µl, Custom mode variable up to 250µl/min with 1 μL incremental adjustments

  • Automatic and manual tube loading modes

  • Non-pressurised system allowing chemical stimulation to be carried out during sampling

  • Accepts 1.5ml, 1ml and 5ml Tubes

  • High-throughput plate arm accept 96 well Flat, U and V bottom plates (with cooling capability)

  • Configurable optics

  • Auto Compensation capability in software

  • Histogram Overlay capability in software


Optical Config

CytoflexS Optical Config

Cytoflex LX (Beckman Coulter)

The Cytoflex LX is our newest digital 6 laser 21 colour flow cytometer analyser, offering improved small particle resolution and high speed/high volume sampling. Options for 2 SSC parameter detections from both the Violet 405nm laser and blue 488nm laser simultaneously for enhanced small particle detection for particles down to 200nm in size. PC is Windows 7 64bit with CytExpert V2.3 Software for data acquisition. This system is user run, but training is required from facility support staff prior to access being given.

System capabilities:

  • 6 laser system (355nm 20mW, 405nm 80mW, 488nm 50mW, 561nm 30mW , 640nm 50mW and 800nm 60mW excitations)

  • 21 fluorescent parameter measurement alongside Forward Scatter (FSC) & Side Scatter (SSC)

  • Possibility for blue and violet laser SSC measurements simulataneously for enhanced resolution of 200nm microparticles.

  • Low noise avalanche photodiode detectors for enhanced light detection

  • Volumetric cell enumeration

  • Up to 30,000 events/second

  • Adjustable flow rates, 10µl, 30µl, 60µl, Custom mode variable up to 250µl/min with 1 μL incremental adjustments

  • Automatic and manual tube loading modes

  • Non-pressurised system allowing chemical stimulation to be carried out during sampling

  • Accepts 1.5ml, 1ml and 5ml Tubes

  • High-throughput plate arm accept 96 well Flat, U and V bottom plates (with cooling capability)

  • Configurable optics

  • Auto Compensation capability in software

  • Histogram Overlay capability in software


Optical Config

Cytoflex LX Optical Config