The RTSF Flow Cytometry Core has two key instruments, the "Influx" and the "LSR II". The Influx sorter can detect up to 14 colors with a maximum of 16 parameter. The Influx machine can sort up to 4 selected populations. Sorted cells may be collected into a variety of tubes or plates. The LSR II can detect 9 colors with a maximum of 11 parameters and is useful for analysis only.