Instrument Optics/Electronics/Fluidics Quality Control Failure (Flow Cytometry (Controls))

Question

Accepted Answer

Data quality is inconsistent between runs or gradually deteriorates over time. Instrument performance metrics fall outside acceptable ranges, affecting sensitivity and accuracy of all measurements. Common causes: 1) Laser alignment, laser time delay, or sensitivity not checked periodically as required 2) Instrument optics, electronics, or fluidics performance degraded without detection 3) BD CS&T (Cytometer Set-up and Tracking) beads not used for standardized quality control 4) Instrument setup parameters drift over time without regular verification 5) Environmental factors (temperature, humidity) or mechanical wear affecting instrument stability Solutions: 1) Use BD CS&T beads with BD FACSDiva Software to perform standardized quality control of instrument optics, electronics and fluidics 2) Establish periodic quality control schedule (daily, weekly, or per manufacturer recommendations) and document results 3) Check laser alignment, laser time delay, and sensitivity at recommended intervals 4) Track instrument performance metrics over time to detect gradual degradation before data quality is compromised 5) Perform corrective maintenance or recalibration when quality control metrics fall outside acceptable ranges 6) Maintain stable environmental conditions (temperature 18-26°C, humidity 20-80%) for optimal instrument performance