1. Flex Set beads: each capture bead species supplied as bead suspensions in buffered saline solution containing fetal bovine serum and 0.09% sodium azide.
2. Instrument setup beads: setup beads defining the four corners of the Flex Set bead clusters (A1, A8, F1, F9 positions) are supplied as single-bead suspensions and are used to adjust the optimal instrument setup.
3. PE instrument setup bead: suspension of F1 beads, used for generating a PE positive bead population for instrument setup. The beads are covalently coupled with an anti-immunoglobulin antibody.
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