Pulse Qualification Technology 2306501

A Anisha Jose (Beckman Coulter, Inc) B Boi Hoa San (Research and Development, Beckman Coulter Life Sciences, Miami, FL 33196) E Evgenia Kim (Research and Development, Beckman Coulter Life Sciences, Miami, FL 33196)

Abstract

Abstract Introduction In a typical flow cytometer, the signal generated by a single cell crossing the focused light beam produces an electrical voltage pulse. Three meta-parameters–height (H), area (A), and width (W) of the pulse–are traditionally used to characterize cells across scatter and fluorescence channels. However, cell clumping and closely spaced events can produce overlapping pulses, leading to coincidence effects that compromise data accuracy Methods Standard doublet discrimination using area-versus-height plots often relies on subjective user judgment, underscoring the need for more robust and objective gating strategies. Results Standard doublet discrimination using area-versus-height plots often relies on subjective user judgment, underscoring the need for more robust and objective gating strategies. Conclusion Results are shown using biological samples and NIST-traceable calibration beads. Funding Source n/a Topic Categories Technological Innovations in Immunology (TECH)

Article Details

Volume / Issue Vol. 215, Issue Supplement_1
Published August 01, 2026
ISSN 0022-1767
Publisher American Association of Immunologists

Authors (3)

A

Anisha Jose

Beckman Coulter, Inc

B

Boi Hoa San

Research and Development, Beckman Coulter Life Sciences, Miami, FL 33196

E

Evgenia Kim

Research and Development, Beckman Coulter Life Sciences, Miami, FL 33196