Matrix Detection timeframe in hours or daysa,b
Saliva 1 – 36 hrs
Blood / plasma 1 – 2
Urine 1 – 7
Sweat 1 – 14
Hair (cut) 7 –  > 100
Hair (plucked) 1 –  > 100
aBoumba et al. [116]
bDolan et al. [230]
Table 1: Typical timeframe of detection for drugs of abuse and their metabolites in human biological samples.