UltraRainbow Calibration Particles, 6 peaks, 8.0-12.9µm, 1E7/mL, 2mL

These polystyrene microspheres feature six distinct fluorescence intensity peaks spanning a broad emission spectrum, making them ideal for multi-channel calibration of flow cytometers and fluorescence-based instruments. With a particle size distribution of 8.0–12.9 µm and a concentration of 1×10⁷ particles/mL in a 2 mL suspension, they provide reliable and reproducible signal reference points. The beads are internally dyed with stable fluorophores and optimized for instrument alignment, compensation, sensitivity verification, and linearity assessments across multiple fluorescence channels.