Cell analyzer and sorting method therefor

A cell analyzer, comprising:

• a reaction chamber, that provides a location for reaction between a blood sample and a reagent to get a sample liquid;
• a flow chamber having a detection region, through which the sample liquid pass in sequence with shrouding by a sheath liquid;
• a conveying apparatus having a conveying line and a control valve, wherein the sample liquid is conveyed into the flow chamber through the conveying line;
• an optical detection apparatus having a plurality of optical signal detectors, operable to collect multiple optical signals generated by each of particles irradiated with light in a blood sample in a detection region, the particles comprising a first category of particles and a second category of particles;
• and
• a data processing apparatus, configured to:
• for each of the particles, acquire intensities of a first group of optical signals, which comprise at least two optical signals selected from the multiple optical signals, and a pulse width of a second group of optical signals, which comprises at least one optical signal selected from the multiple optical signals;
• for each of the particles, calculate one or more reinforcement signals related to the particle, each reinforcement signal comprising a reinforcement signal based on an intensity of a first optical signal selected from the first group of optical signals and a pulse width of a second optical signal selected from the second group of optical signals, wherein the first optical signal is as same as or different from the second optical signal;
• and
• distinguish between the first category of particles and the second category of particles based at least partially on the one or more reinforcement signals related to each of the particles.