Automated solid phase extraction (SPE) using micro-elution plates for fentanyl analogues, nitazenes and xylazine in human urine.

This poster explores automated and semi-automated workflows that leverage positive pressure processing for small-volume sample preparation using micro-elution plates. The study evaluates how positive pressure technology can improve flow consistency, maximize analyte recovery from limited sample volumes and deliver the reproducible performance needed for accurate and reliable analytical results.