. Author manuscript; available in PMC: 2017 Sep 1.

Published in final edited form as: Anal Bioanal Chem. 2016 Jul 15;408(23):6461–6471. doi: 10.1007/s00216-016-9765-8

Table 2.

Cannabinoids in human urine: limits of detection (LOD), linear ranges, regression equations and correlation coefficients (N=5).

Analyte	Internal standard	LOD (μg/L)	Linear Range (μg/L)	Regression equation (y=mx+b)	Correlation Coefficient (R²)
THCVCOOH	d₉-THCCOOH	1	1–100	y=0.085 (0.001)x + 0.005 (0.02)	0.9913 – 0.9987
THCCOOH-gluc	d₃-THCCOOH-gluc	5	5–500	y = 0.011 (0.001)x + 0.001 (0.003)	0.9945 – 0.9991
THC-gluc	d₃-THCCOOH-gluc	0.5	0.5–50	y = 0.01 (0.001)x − 0.0001 (0.0005)	0.9915 – 0.9980
THCCOOH	d₉-THCCOOH	0.5	0.5–100	y = 0.207 (0.008)x − 0.003 (0.01)	0.9956 – 0.9985
THCAA	d₉-THCCOOH	0.5	0.5–50	y = 0.378 (0.033)x − 0.007 (0.034)	0.9919 – 0.9966
11-OH-THC	d₃-11-OH-THC	0.5	0.5–50	y = 0.183 (0.008)x − 0.009 (0.011)	0.9944 – 0.9975
THCV	d₃-11-OH-THC	1	1–100	y = 2.006 (0.157)x + 0.127 (0.172)	0.9927 – 0.9993
CBD	d₃-CBD	0.5	0.5–50	y = 0.255 (0.011)x − 0.01 (0.013)	0.9936 – 0.9983
CBG	d₃-CBN	1	1–100	y = 0.498 (0.049)x + 0.014 (0.061)	0.9954 – 0.9987
CBN	d₃-CBN	0.5	0.5–50	y = 0.146 (0.007)x + 0.0001 (0.009)	0.9965 – 0.9990
THC	d₃-THC	0.5	0.5–100	y = 0.203 (0.006)x + 0.004 (0.009)	0.9971 – 0.9993