Bright Count Microspheres™ are an efficient single-platform method for absolute counting that combine the advantages of direct flow cytometric immunophenotyping with the use of two different fluorescent microspheres.

These beads are used as a double internal standard for blood volume calculation and both contain multiple fluorophores that can be detected in FL1, FL2, FL3 and FL4 but with different fluorescence intensities which permits their differentiation.

Details Ideal for quantitative measurement of cell subsets in studies of: CD34+ haematopoietic progenitor cells CD4/CD8 T-lymphocytes Residual leucocytes in transfusion bags …and many more Contains two different fluorescent microspheres that provide an internal reference standard to assure accurate and sensitive results Advantages The only available single platform for absolute counting with a double internal standard determing if homogeneous acquisition is performed. Easy to use and analyze by ignoring sideward scatter adjustments leading to visualization of all the positively stained cells and bead clusters. One absolute count per cell population, leading to more accuracy, precision and reproducibility added protein supplements preventing vanishing bead phenomenon ensuring accurate counting.