- Beginners Guide (Training Resources)
- Core Facilities, Communities & Societies
- Flow Cytometry Instruments, Software & Upgrades
- Meetings & Conferences
- Online Resources
- Panel Design Resource
- Positions Available
- Reagents, Consumables & Services
- Antibodies in the development of therapeutic products
- Area of Biology
- Blood Controls for Flow Cytometry
- Cell Proliferation
- Cell Separation Techniques
- Clinical Diagnostic Reagents
- Custom / Contract Research Services
- Flow Cytometry & Immunochemical Reagents
- Absolute Cell Counting
- Antibody Panels & Sets
- Antibody Purification
- Cell Health and Proliferation
- EuroFlow™ product line
- Flow Cytometry Buffers
- Flow Cytometry Kits
- Flow Cytometry Validated Antibodies
- Lysis, Fixation & Permeabilisation
- Mitochondrial Staining
- Multimer Reagents
- Sample Stabilization
- Secondary Antibodies
- Viability / DNA Stains
- BioStatus DRAQ9
- Flow Cytometry Beads
- Flow Cytometry Consumables
- Fluorescent Dyes & Labelling
- Multiplex Bead Assays
- Set Up & Standardization
- Sourcing Reagents: Help and Advice
- Science News
- Sponsors' Portals
Cytognos Perfect-Count Microspheres™
Perfect-Count Microspheres™ is a microbead-based single-platform system for absolute counts, which can be used in combination with monoclonal antibodies conjugated with different fluorochromes.
Its unique internal quality control contains two bead-types (A and B) that assure the accuracy of absolute counts of cell subpopulations. Type A and B ratio disparity reports possible problems during sample preparation and/or acquisition which might invalidate final results.
Both A and B bead populations are excited by an argon or blue laser (488 nm) but they have different fluorescence intensities that help with their identification in the analysis.
