Amphetamines abuse remains a major concern in both clinical and forensic toxicology. While conventional matrices like blood and urine are commonly used, their detection window is limited. This study ...
20(S)-Protopanaxadiol (PPD) is a saponin derivative of ginsenoside, with more potent biological and pharmacological activities than Rg3 and Rh2. The lack of ionizable centers leads to low mass ...