. Author manuscript; available in PMC: 2013 Jul 21.

Published in final edited form as: Anal Bioanal Chem. 2010 Dec 2;400(1):69–78. doi: 10.1007/s00216-010-4392-2

Table 2.

Limits of detection (LOD), limits of quantification (LOQ) and linearity results

Analyte	LOD (ng/patch)	LOQ (ng/patch)	Linearity (ng/patch)	Intercept±SD (n=4)	Slope±SD (n=4)	r²±SD (n=4)
EME	2.5	5	5–1000	−0.0013±0.0025	0.0112±0.0010	0.9972±0.0023
BE	0.5	1	1–1000	0.0016±0.0008	0.0071±0.0004	0.9926±0.0013
Cocaine	0.5	1	1–1000	0.0003±0.0001	0.0019±0.0001	0.9964±0.0013
Morphine	0.75	1	1–1000	0.0058±0.0025	0.0381±0.0044	0.9936±0.0030
Codeine	0.75	1	1–1000	0.0004±0.0013	0.0101±0.0003	0.9963±0.0032
6AM	0.75	1	1–1000	0.0004±0.0018	0.0114±0.0006	0.9991±0.0004
6AC	0.75	1	1–1000	0.0009±0.0007	0.0077±0.0004	0.9967±0.0002
Heroin	0.5	1	1–1000	0.0010±0.0005	0.0104±0.0002	0.9978±0.0002
Cotinine	0.75	1	1–1000	0.0067±0.0019	0.0115±0.0006	0.9962±0.0017
OH-Cotinine	0.75	1	1–1000	0.0008±0.0007	0.0073±0.0002	0.9977±0.0012
Methadone	0.5	1	1–1000	0.0001±0	0.0014±0.0001	0.9929±0.0008
EDDP	0.5	1	1–1000	0.0015±0.0003	0.0088±0.0006	0.9928±0.0028
BUP	0.5	1	1–1000	0.0001±0.0013	0.0182±0.0007	0.9980±0.0005
NBUP	0.75	1	1–1000	0.0047±0.0024	0.0074±0.0003	0.9967±0.0019