Table 3S.

Comparison of calibration results determined at the start and end of experiments: Response factor (RF), coefficient of determination (R2), and relative standard errors (RSE).

Order	Group	Compound	RF				R2			RSEa (%)
			Exp_day 0	Exp_day 9	Mean	CVb	Exp_day 0	Exp_day 9	Mean
1	Aldehyde	AA	522	497	509.5	3.47	0.9619	0.9698	0.9659	2.52
2		PA	12,017	11,950	11,984	0.40	0.9991	0.9991	0.9991	3.49
3		BA	43,572	43,467	43,520	0.17	0.9963	0.9938	0.9951	1.05
4		IA	66,125	65,836	65,981	0.31	0.9962	0.9932	0.9947	1.93
5		VA	59,322	59,804	59,563	0.57	0.9973	0.9973	0.9973	1.35
6	Aromatic	B	131,760	131,280	131,520	0.26	0.9909	0.9930	0.9920	2.06
7		T	168,602	165,819	167,211	1.18	0.9995	0.9995	0.9995	0.83
8		S	188,198	191,709	189,954	1.31	0.9995	0.9997	0.9996	1.32
9		p-X	188,510	184,038	186,274	1.70	0.9997	0.9987	0.9992	0.49
10		m-X	197,068	193,888	195,478	1.15	0.9992	0.9994	0.9993	0.56
11		o-X	198,376	194,140	196,258	1.53	0.9991	0.9991	0.9991	0.73
12	Ketone	MEK	48,980	48,566	48,773	0.60	0.9969	0.9987	0.9978	1.79
13		MIBK	117,383	117,646	117,515	0.16	0.9998	0.9985	0.9992	0.85
14	Alcohol	i-BuAl	93,667	92,778	93,223	0.67	0.9969	0.9972	0.9971	1.73
15	Ester	BuAc	113,114	117,791	115,453	2.86	0.9982	0.9973	0.9978	0.79
16	Carboxyl	PPA	25,574	26,963	26,269	3.74	0.9977	0.9953	0.9965	1.68
17		BTA	71,259	67,832	69,546	3.48	0.9963	0.9967	0.9965	0.13
18		IVA	99,441	94,589	97,015	3.54	0.9965	0.9935	0.9950	2.09
19		VLA	79,615	78,950	79,283	0.59	0.9918	0.9925	0.9922	0.97
		Mean				1.46			0.9954	1.39
		SD				1.29			0.0075	0.82

^aFive replicate analyses of 26.1 ng (mean mass) of analytes per 1 μL injection of F-WS (4th calibration point)

^bCV (coefficient of variation) = SD/mean * 100