Enzymatic Digestion and Selective Quantification of Underivatised Delta-9-Tetrahydrocannabinol and Cocaine in Human Hair Using Gas Chromatography-Mass Spectrometry

Table 2

Hair analysis results of samples using GC-MS.

Hair samples	Age	Gender	Δ^9-THC ng/mg	Cocaine ng/mg	SD	SEM
					𝑛=3
H1	22	F	0.08	ND	±0.006	0.003
H2	22	F	0.05	ND	±0.001	0.001
H3	18	F	0.35	ND	±0.006	0.003
H4	21	M	0.20	ND	±0.000	0.000
H5	24	M	0.18	ND	±0.017	0.010
H6	22	M	0.09	ND	±0.006	0.003
H7	20	M	0.08	ND	±0.010	0.006
H8	27	M	0.14	ND	±0.012	0.007
H9	18	M	0.13	ND	±0.006	0.003
H10	23	M	0.15	0.1	±0.00/±0.015	0.000/0.009

ND: not detected, SD: standard deviation, SEM: standard error of mean.