A scheduled system update will be performed this weekend starting at 5:00 PM PST on Friday, July 17th. During this timeframe, customers will not be able to place orders online. Please email [email protected] for any urgent order submissions necessary during this time. We appreciate your patience while we continue to improve your online experience at beckman.com
Flow-Check Fluorospheres consist of 10 μm (nominal diameter) polystyrene fluorescent microspheres suspended in an aqueous medium containing surfactants and preservatives at 1 x 106 fluorospheres/mL (nominal concentration). The fluorescence emission of the dye contained within the fluorospheres ranges from 525 nm to 700 nm when excited at 488 nm. Flow-Check Fluorospheres are used to verify instrument optical alignment and fluidics.